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Ampex
Ampex
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Former Ampex headquarters on Broadway in Redwood City, California

Key Information

Ampex Data Systems Corporation is an American electronics company founded in 1944 by Alexander M. Poniatoff as a spin-off of Dalmo-Victor.[1][2] The name AMPEX is an acronym, created by its founder, which stands for Alexander M. Poniatoff Excellence.[3] Ampex operates as Ampex Data Systems Corporation, a subsidiary of Delta Information Systems, and consists of two business units. The Silicon Valley unit, known internally as Ampex Data Systems (ADS), manufactures digital data storage systems capable of functioning in harsh environments. The Colorado Springs, Colorado, unit, referred to as Ampex Intelligent Systems (AIS), serves as a laboratory and hub for the company's line of industrial control systems, cyber security products and services and its artificial intelligence/machine learning technology.

Ampex's first great success was a line of reel-to-reel tape recorders developed from the German wartime Magnetophon system at the behest of Bing Crosby. Ampex quickly became a leader in audio tape technology, developing many of the analog recording formats for both music and movies that remained in use into the 1990s. Starting in the 1950s, the company began developing video tape recorders, and later introduced the helical scan concept that made home video players possible. They also introduced multi-track recording, slow-motion and instant playback television, and a host of other advances. Ampex's tape business was rendered obsolete during the 1990s, and the company turned to digital storage products.

Ampex moved into digital storage for DoD Flight Test Instrumentation (FTI) with the introduction of the first, true all digital flight test recorder. Ampex supports numerous major DoD programs with the US Air Force, US Army, US Marines, US Navy and other government entities (NASA, DHS and national labs). Ampex also works with all major DoD primes and integrators including Boeing, General Atomics, Lockheed, Northrop, Raytheon and many others.

Currently, Ampex is attempting to do more with the data stored on its network attached storage (NAS) devices. This includes adding encryption for secure data storage; algorithms focused on control system cyber security for infrastructure and aerospace platforms; and artificial intelligence/machine learning for automated entity identification and data analytics.

Origin

[edit]

Russian–American inventor Alexander Matthew Poniatoff established the company in San Carlos, California, in 1944 as the Ampex Electric and Manufacturing Company. The company name came from his initials plus "ex" to avoid using the name AMP already in use (by Aircraft and Marine Products). During World War II, Ampex was a subcontractor to Dalmo-Victor, manufacturing high quality electric motors and generators for radars that used alnico 5 magnets from General Electric.[4][5] Ampex was initially set up in an abandoned loft-space above the Dalmo-Victor plant; eventually they would have offices at 1313 Laurel Street, San Carlos, California (at the intersection of Howard Avenue and Laurel Street).[6]

Near the end of the war, while serving in the U.S. Army Signal Corps, Major Jack Mullin was assigned to investigate German radio and electronics experiments. He discovered the Magnetophons with AC biasing on a trip to Radio Frankfurt. The device produced much better fidelity than shellac records. The technological processes in tape recording and equipment developed by German companies before and during the 1939–1945 war were subject to patents which were effectively voided after Germany's 1945 surrender and defeat. Mullin acquired two Magnetophon recorders and 50 reels of BASF Type L tape, and brought them to America, where he produced modified versions. He demonstrated them to the Institute of Radio Engineers in San Francisco on May 16, 1946.[4]

Bing Crosby, a big star on radio at the time, was receptive to the idea of pre-recording his radio programs. He disliked the regimentation of live broadcasts, and much preferred the relaxed atmosphere of the recording studio. He had already asked the NBC network to let him pre-record his 1944–45 series on transcription discs, but the network refused; so Crosby had withdrawn from live radio for a year and returned (this time to the recently created ABC) for the 1946–47 season, only reluctantly.

In June 1947, Mullin, who was pitching the technology to the major Hollywood movie studios, got the chance to demonstrate his modified tape recorders to Crosby. When Crosby heard a demonstration of Mullin's tape recorders, he immediately saw the potential of the new technology and commissioned Mullin to prepare a test recording of his radio show. Ampex was finishing its prototype of the Model 200 tape recorder, and Mullin used the first two models as soon as they were built. After a successful test broadcast, ABC agreed to allow Crosby to pre-record his shows on tape. Crosby immediately appointed Mullin as his chief engineer and placed an order for $50,000 worth of the new recorders so that Ampex (then a small six-man concern) could develop a commercial production model from the prototypes.[4][7]

Crosby Enterprises was Ampex's West Coast representative until 1957.[8]

Early tape recorders

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Ampex 601 playing a recording of "Les Paul's New Sound, Vol. II". Made in Redwood City, California. Circa 1956.
Ampex 601 playing a recording of "Les Paul's New Sound, Vol. II". Made in Redwood City, California, c. 1956.
Internals of Ampex Fine Line F-44, a 3-head Ampex home-use audio tape recorder, c. 1965
AMPEX model 300 half-inch three-track recorder
AMPEX 440 (2tr, 4tr) & 16-track MM 1000

The company's first tape recorder, the Ampex Model 200A, was first shipped in April 1948. The first two units, serial numbers 1 and 2, were used to record Bing Crosby's show.[1] The American Broadcasting Company used these recorders along with 3M Scotch 111 gamma ferric oxide coated acetate tape[9] for the first-ever U.S. delayed radio broadcast of Bing Crosby's Philco Radio Time.[7] Ampex tape recorders revolutionized the radio and recording industries because of their superior audio quality and ease of operation over audio disk cutting lathes.[1]

The firm's earliest production of multichannel machines was not aimed at music recording; it noted in 1953–54 that "Ampex began the commercial production of multitrack tape recorders about four years ago for those interested in telemetered information from guided missiles and the like. These equipments provided any number of simultaneous channels up to 14. It was a simple step, therefore, to make stereophonic tape recorders with two or more channels."[10]

During the early 1950s, Ampex began marketing one- and two-track machines using 14-inch (6.4 mm) tape. In May 1953 the firm announced production of two- and three-track machines on 1/4 inch tape.[11] The line soon expanded into three- and four-track models using 12-inch (13 mm) tape. In the early 1950s, Ampex moved to Redwood City, California. Ampex acquired Orradio Industries in 1959, which became the Ampex Magnetic Tape Division, headquartered in Opelika, Alabama. This made Ampex a manufacturer of both recorders and tape. By the end of that decade Ampex products were much in demand by top recording studios worldwide.

In 1952, movie producer Mike Todd asked Ampex to develop a high-fidelity movie sound system using sound magnetically recorded on the film itself, as contrasted with the technology of the time, which used magnetic tracks on a separate celluloid base film (later commonly known as mag stock). The result of this development was the CinemaScope/Todd-AO motion picture sound system,[12] which was first used in movies such as The Robe (1953) in 35mm and Oklahoma (1955) in 70mm (and also in 35mm). In 1960, the Academy of Motion Picture Arts and Sciences awarded Ampex an Oscar for technical achievement as a result of this development.

Les Paul, a friend of Crosby and a regular guest on his shows, had already been experimenting with overdubbed recordings on disc. He received an early portable Ampex Model 300 from Crosby. Using this machine, Les Paul invented "Sound on Sound" recording technology. He placed an additional playback head, located before the conventional erase/record/playback heads. This allowed Paul to play along with a previously recorded track, both of which were mixed together on to a new track. This was a destructive process because the original recording was recorded over.[13]

For Operation Gold in Berlin 1955–56, 150 Ampex tape recorders in the warehouse operations centre were used to record intercepted Soviet telephone calls and teletype messages.[14]

Professional 8-track recorders

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Ampex built a handful of multitrack machines during the late 1950s that could record as many as eight tracks on 1-inch (25 mm) tape. The project was overseen by Ross Snyder, Ampex manager of special products. To make the multitrack recorder work, Snyder invented the Sel-Sync process, which used some tracks on the head for playback and other tracks on the head for recording. This made the newly recorded material be in sync with the existing recorded tracks.[15] The first of these machines cost $10,000 and was installed in Les Paul's home recording studio by David Sarser.[16][17]

In 1967, Ampex responded to demand by stepping up production of their 8-track machines with the production model MM 1000. Like earlier 8-track machines of this era, it used 1-inch tape.

16 and 24-track recorders

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In 1966, Ampex built their first 16-track recorder, the model AG-1000, at the request of Mirasound Studios in New York City. In 1967, Ampex introduced a 16-track version of the MM 1000 which was the world's first 16-track professional tape recorder put into mass-production. Both used a 2-inch (51 mm) tape transport design adapted from the video recording division. The 16-track MM-1000 quickly became legendary for its tremendous flexibility, reliability and outstanding sound quality. This brought about the "golden age" of large format analog multitrack recorders which would last into the mid-1990s. MCI built the first 24-track recorder (using 2-inch tape) in 1968 which was installed at TTG Studios in Los Angeles. Later machines built by Ampex starting in 1969 would have as many as 24 tracks on 2 inch tape. In addition to this, the introduction of SMPTE time code allowed studios to run multiple machines in perfect synchronization, making the number of available tracks virtually unlimited.

By the 1970s, Ampex faced tough competition from the Swiss company Studer and Japanese manufacturers such as Otari and Sony (who also purchased the MCI brand in 1982). In 1979, Ampex introduced their most advanced 24-track recorder, the model ATR-124. The ATR-124 was ruggedly constructed and had audio specifications that nearly rivaled the first digital recording machines. However, sales of the ATR-124 were slow due to the machine's high price tag. Ampex sold only about 50 or 60 ATR-124 machines and withdrew from the professional audio tape recorder market entirely in 1983.

The 1990s

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By the 1990s Ampex focused more on video recorders, instrumentation recorders, and data recorders. In 1991, Ampex sold their professional audio recorder line to Sprague Magnetics.[18] The Ampex Recording Media Corporation spun off in 1995 as Quantegy Inc.; that company has ceased producing recording tape.

Video technology

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AMPEX VR-1000A (1950s)

Video processing

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While AMPEX are well recognized for their contribution to magnetic tape recording, they also had a huge impact on developments the whole video signal chain. They did rebadge some specialist low-volume OEM products to complete the package, but their in-house teams developed industry leading products in the following categories:

Digital optics

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ADO – Ampex Digital Optics provided comprehensive frame manipulation in 2 and 3 dimensions. Adjusting the aspect, size, and rotation of the image was performed continuously in real-time. An optional digital 'combiner' was available to perform the foreground layering and priority switching – to reduce the burden on the vision mixer with multi-channel effects.

Video switching and effects

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AVC – The AVC range of vision mixers ranged from small, single buss devices up to the high-end Century Series, with multiple Mix/Effect busses, infinite re-entry and powerful keying and control software.

Editing controllers

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The product line evolved quickly from manual editing on the actual VTRs themselves to incorporate SMPTE timecode providing advanced timeline control. The RA-4000 and EDM-1 were fully functional early products, but soon evolved to the extremely powerful ACE family to compete with CMX and other edit controller brands.

Quadruplex two-inch tape

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Starting in the early 1950s, RCA, Bing Crosby and others tried to record analog video on very fast-moving magnetic tape. As early as 1952, Ampex developed prototype video tape recorders that used a spinning head and relatively slow-moving tape. In early 1956, a team produced the first videotape recorder.[19] A young, 19-year-old engineer Ray Dolby was also part of the team.[4] Ampex demonstrated the VR-1000, which was the first of Ampex's line of 2-inch Quadruplex videotape recorders on April 14, 1956, at the National Association of Radio and Television Broadcasters in Chicago. The first magnetically recorded time-delayed television network program using the new Ampex Quadruplex recording system was CBS's Douglas Edwards and the News on November 30, 1956.

The "Quad" head assembly rotates at 14,400 rpm (NTSC). The four head pieces (quad) are switched successively so that recorded stripes cross the video portion (most of the tape middle, audio is on one edge, control track is on the other) so that head to tape write speed is well in excess of the 15-inch-per-second (38 cm/s) physical motion. They wrote the video vertically across the width of a tape that was 2 inches (51 mm) wide and ran at 15 inches (38 cm) per second. This allowed hour-long television programs to be recorded on one reel of tape. In 1956, one reel of tape cost $300; and Ampex advertised the cost of the recorder as $45,000.[20] A 7.5-inch-per-second (19 cm/s) version was released later, and this required a new, narrower headwheel. This vertical writing facilitated mechanical editing, once the control track was developed to display the pulse that indicates where a frame ends and the next one begins. Later, Ampex developed electronic editing.

The National Academy of Television Arts and Sciences awarded Ampex its first Emmy in 1957 for this development. Ampex received a total of 12 Emmys for its technical video achievements.

In 1959, Richard Nixon, then Vice President, and Nikita Khrushchev held discussions at the Moscow Trade Fair, which became known as the "Kitchen Debate" because they were mostly held in the kitchen of a suburban model house. These discussions were recorded on an Ampex color videotape recorder,[21] and during the debate Nixon pointed this out as one of the many American technological advances.

AMPEX VR-3000 (1967)

In 1967, Ampex introduced the Ampex VR-3000 portable broadcast video recorder, which revolutionized the recording of broadcast quality television in the field without the need for long cables and large support vehicles. Broadcast quality images could now be shot anywhere, including from airplanes, helicopters and boats.

The Quadruplex format dominated the broadcast industry for a quarter of a century. The format was licensed to RCA for use in their "television tape recorders." Ampex's invention revolutionized the television production industry by eliminating the kinescope process of time-shifting television programs, which required the use of motion picture film. For archival purposes, the kinescope method continued to be used for some years; film was still preferred by archivists. The Ampex broadcast video tape recorder facilitated time-zone broadcast delay so that networks could air programming at the same hour in various time zones. Ampex had trademarked the name "video tape", so competitor RCA called the medium "TV tape" or "television tape". The terms eventually became genericized, and "videotape" is commonly used today.

While the quadruplex recording system per se is no longer in use, the principle evolved into the helical scanning technique used in virtually all video tape machines, such as those using the consumer formats of VHS, Sony Betamax and Video 2000. Sony Betacam was successful as a professional format but operated with a different recording system and faster tape speed than Betamax.

One of the key engineers in the development of the Quadruplex video recorder for Ampex was Ray Dolby, who worked under Charlie Ginsburg and went on to form Dolby Laboratories, a pioneer in audio noise reduction systems. Dolby's contribution to the videotape system was limited to the mathematics behind the reactance tube FM modulator, as videotape then used FM modulation for the video portion. Another contributor designed the FM modulator itself. Dolby left Ampex to seek a PhD in physics in England, which is where Dolby Labs was later founded, before moving back to San Francisco. Dolby's brother Dale was also an engineer at Ampex.

VR-5000 and VR-8000

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In 1961, Ampex introduced the first 1-inch helical scan video recorders, the Ampex 2-inch helical VTRs, which recorded video using helical scan recording technology on tape.

Ampex 2-inch helical VTR

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Ampex 2 inch helical VTRs were manufactured from 1963 to 1970. Model VR-1500 for home. The VR-660 for Broadcast television systems, industrial companies, educational institutions, and a few for In-flight entertainment. The VR-1500 and VR-660 found service at educational institutions especially due to their relatively low cost vs. 2-inch (51 mm) quadruplex VTRs. These machines were simple to operate, reliable, small in size—and produced, for their time, very good video without the complexity of the larger and much more complex 2" Quad machines.

HS-100 and HS-200 "slo-mo" disc recorder

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HS-100 disc
HS-100 Controller

In March 1967, Ampex introduced the HS-100 video disc recorder. The system was developed by Ampex at the request of the American Broadcasting Company (ABC) for a variety of sports broadcast uses. It was first demonstrated on the air on March 18, 1967, when ABC's Wide World of Sports televised the "World Series of Skiing" from Vail, Colorado.[22] The video was recorded on analog magnetic disc. The disc weighed 5 pounds (2.3 kg) and rotated at 60 rps, 3600 rpm (50 rps in PAL). One NTSC unit could record 30 seconds of video, PAL units 36 seconds. The video could then be played back in slow motion, stop action to freeze frame.[23]

A more deluxe version, the HS-200, was introduced in April 1968,[24] and provided a large control console with variable speed playback. This made it ideal for instant replay for sports events and precise timing control in post-production service. CBS-TV was the first to use the technique during live sportscasts, though it was quickly adopted by all American TV networks. The HS-200, which was an HS-100 connected to a control console, had greater precise frame and timing control capability, lending itself to post-production applications like special effects and titles. The HS-200 had a frame accurate timing computer that enabled frame-accurate cuts and dissolve transitions by way of a two-input video switcher. Slow-motion sequences could likewise be programmed and could be "triggered" to begin via an external control pulse such as might come from an external VTR editor like the Ampex VR-2000 VTR with Editec. The HS-200 was the first system capable of single-frame video animation recording, using magnetic discs as opposed to videotape. The HS-200 also provided a readout with specific frame numbers showing from the 900 frames available (NTSC version). Sequences could be triggered to start from any of these 900 frames with frame-accurate repeatability for creative fine tuning of sequence start and end points.

Type A

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1 inch type A videotape (designated Type A by the Society of Motion Picture and Television Engineers, SMPTE) was an open-reel helical scan videotape format developed by Ampex in 1965, one of the first standardized open-reel videotape formats in the 1 inch (25 mm) width; most others of that size at that time were proprietary.

Type C

[edit]

1 inch type C videotape (designated Type C by SMPTE) was a professional open-reel videotape format co-developed and introduced by Ampex and Sony in 1976. It became the replacement in the professional video and television broadcast industries for the then-incumbent Quadruplex.

D2

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D2 is a digital video tape format created by Ampex and other manufacturers (through a standards group of SMPTE) and introduced at the 1988 NAB (National Association of Broadcasters) convention as a lower-cost alternative to the D-1 format. Like D-1, D-2 video is uncompressed; however, it saves bandwidth and other costs by sampling a fully encoded NTSC or PAL composite video signal, and storing it directly to magnetic tape, rather than sampling component video. This is known as digital composite.

AMPEX DCT-1700D (1992)

DCT and DST

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Digital Component Technology (DCT) and Data Storage Technology (DST) are VTR and data storage devices respectively, created by Ampex in 1992. Both were similar to the D1 and D2 VTR formats, using a 19-millimetre (34 in) width, with the DCT format using DCT (discrete cosine transform) video compression, also its namesake.

The DCT and DST formats yielded relatively high capacity and speed for data and video. Double-density DST data storage was introduced in 1996. The final generation of these products were quad density, introduced in 2000, resulting in a large cartridge holding 660GB of data.

Milestones

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  • In 1948, the first tape-delayed U.S. radio program was broadcast by using an Ampex Model 200 tape recorder.
  • In May 1949 Model 300 introduced improvements in audio head, tape drive and tape path.
  • In 1950, Model 400 introduced lower cost professional quality audio recorder, soon to be replaced by the Model 400A, which was the logical precursor of the Model 350.
  • In 1950, Ampex introduced the first "dedicated" instrumentation recorder, Model 500, built for the U.S. Navy.
  • In April 1953 Model 350 introduced audio recorder to replace the Model 400/Model 400A. The Model 350 had more simplicity and durability. Ampex released the 35 mm four-track CinemaScope stereo reproduction system.
  • In May 1954 Model 600 introduced mastering quality audio portable recorder. Models 3200-3300 high-speed duplicators also introduced.
  • In 1954, in a recording studio equipped with an Ampex reel-to-reel audio tape recording machine, an unknown truck driver named Elvis Presley recorded his historic first single, "That's All Right" at Sun Studios in Memphis. Also that year, Ampex introduced the first multi-track audio recorder derived from multi-track data recording technology.
  • In 1955, Ampex released the 70 mm and 35 mm six-track and four-track Todd-AO system, and an improved 35mm four-track system.
  • On March 14, 1956, The Ampex VRX-1000 (later renamed the Mark IV) videotape recorder is introduced at the National Association of Radio and Television Broadcasters in Chicago. This is the first practical videotape recorder and is hailed as a major technological breakthrough. CBS goes on air with the first videotape delayed broadcast, Douglas Edwards and The News, on November 30, 1956, from Los Angeles, California, using the Ampex Mark IV.
  • In March 1957, Ampex won an Emmy award for the invention of the Video Tape Recorder (VTR).
  • In 1958, NASA selected Ampex data recorders and magnetic tape. It has been used for virtually all U.S. space missions since.
  • In 1959, the Nixon-Khrushchev Kitchen Debate was recorded on Ampex videotape. The fact that the debate was being videotaped was mentioned by Nixon as an example of American technological development.
  • In 1960, The Academy of Motion Picture Arts and Sciences presented Ampex with an Oscar for technical achievement.
  • January 1961 Helical scan recording was invented by Ampex. The technology behind the worldwide consumer video revolution, it is used in all home video tape recorders.
  • In 1963, Ampex technology was used to show replays of the live assassination of Lee Harvey Oswald.
  • In 1963, Ampex introduced EDITEC, electronic video editing, allowing broadcast television editors frame-by-frame recording control, simplifying tape editing and the ability to make animation effects possible. This was the basis for all subsequent editing systems.
  • On December 7, 1963 – Instant Replay is used for the first time during the live transmission of the Army Navy Game by its inventor, director, Tony Verna.
  • In April 1964, Ampex introduced the VR-2000 high band videotape recorder, the first ever to be capable of color fidelity required for high quality color broadcasting.
  • February 1965 – introduced VR-303 and VR-7000 closed-circuit video tape recorder.
  • May 1965 – introduced AG-350 first all-transistorized audio recorder.
  • July 1965 – introduced VR-660B VTR advanced version of VR-660; replaces VR-660 and VR-1500.
  • November 1965 – introduced VR-7000 compact portable closed circuit video tape recorder.
  • During 1966–1967, Ampex FR-900 data drives were used to record the first images of the Earth from the Moon, as part of the Lunar Orbiter program. Two drives were refurbished to recover the images as part of the Lunar Orbiter Image Recovery Project (LOIRP).[25]
The first image of Earth taken from the Moon. On the left the original and on the right a digitally restored version created by LOIRP.
Ampex FR-900 at LOIRP
  • In 1967, ABC used the Ampex HS-100 disk recorder for slow-motion playback of downhill skiing on the program World Series of Skiing in Vail, Colorado. This was the first use of slow-motion instant replay in sporting events.
  • In 1968, the introduction of the Ampex VR-3000 revolutionizes video recording: the first truly portable VTR. It is used at the '68 Summer Olympics in Mexico City to follow the world's cross-country runners for the first time in Broadcast history.
  • In 1969, Ampex introduced Videofile, still in use at Scotland Yard for the electronic storage and retrieval of fingerprints.
  • In 1972, Ampex introduced the ACR-25, the first automated robotic library system for the recording and playback of television commercials. Each commercial was recorded on an individual cartridge. These cartridges were then loaded into a large rotating carousel. Using sophisticated mechanics and vacuum pneumatics, the "carts" were loaded into and extracted from the machine with an 8-second cycle time for spots under 61 seconds. This freed TV stations from loading individual machines with spots in real time, or preparing spot reels in advance of a broadcast. The TV newsroom also began to use the ACR-25 to run news stories because of its random-access capability. The ACR-25 used AVR-1 signal, servo, and timebase systems, and a machine-programming control bay designed by Ampex engineer E. Stanley Busby. Both machines had a lockup time of 200 milliseconds, as distinct from the industry standard 5 second pre-roll. This was accomplished with optical-vacuum reel servos providing the vacuum capstan negligible inertial mass to control, and predictive digital servos that could re-frame vertically at horizontal rate, as well as timebase correction with a window exceeding 64 microseconds (compared to the VR-2000's window of less than 5 microseconds).
  • Also in 1970, Ampex started its own record label, Ampex Records. Its biggest hit was "We Gotta Get You A Woman" by Todd Rundgren (as "Runt"), reaching No. 20 on the charts in 1970.
  • In 1978, the Ampex Video Art (AVA) video graphics system is used by artist LeRoy Neiman on air during Super Bowl XII. AVA, the first video paint system, allows the graphic artist, using an electronic pen, to illustrate in a new medium, video. This innovation paved the way for high quality electronic graphics, such as those used in video games.
  • In 1982, Ampex introduced DST (high-performance computer mass storage products able to store half the Library of Congress in 21 square feet (2.0 m2) of floor space) and DCT, the first digital component postproduction system using image compression technology to produce high quality images.
  • In 1983, Ampex introduced the DCRS digital cassette recorder, offering compact cassette storage with the equivalent of 16 digital or 8 DDR instrumentation reels on one cassette. Also, Partial Response Maximum Likelihood (PRML) data decoding technology has its first use in Ampex's DCRsi recorders. This technology is commonly used in high performance computer disk drives and other high density magnetic data storage devices.
  • In 1985, Ampex introduced the DIS 120i and DIS 160i dual port, data/instrumentation recorders. These made it possible for the first time to capture real time instrumentation data and then utilize the same recorder to process the data in a computer environment through its second port using SCSI-2 protocol.
  • In 2005, Ampex received its 12th Emmy award for its invention of slow-motion color recording and playback. Also honored with Lifetime Achievement Awards were the members of the engineering team that created the videotape recorder when they worked for Ampex: Charles Andersen, Ray Dolby, Shelby Henderson, Fred Pfost, and the late Charles Ginsburg and Alex Maxey.

Sticky-shed syndrome

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Some master tapes and other recordings predominantly from the 1970s and 1980s have degraded due to the so-called sticky-shed syndrome. When sticky-shed syndrome occurs, the binding agent deteriorates, resulting in the magnetic coating coming off the base and either sticking to the backing of the tape layer wound on top of it (resulting in dropout), or being scraped off and deposited on the tape heads while lifting the head off the tape, degrading the treble.

Shed on head
Shed on head
Shed on guide
Shed on guide
Sticky shed from 1/4" Ampex 456 tape on the tape head and tape guide of a Technics RS-1500

The problem has been reported on a number of makes of tape (usually back-coated tapes), including Ampex tapes.

Ampex filed U.S. patent 5,236,790[26] for a baking process ("A typical temperature used is 54 °C (129 °F) and a typical time is 16 hours") to attempt to recover such tapes, allowing them to be played once more and the recordings transferred to new media. The problems have been reported on tapes of type 406/407, 456/457, 2020/373.

Branding

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  • In 1959, Ampex acquired Orradio Industries and it became the Ampex Magnetic Tape Division.
  • In 1995, Ampex divested this division, then called the Ampex Recording Media Corporation. This became Quantegy, Inc., which later changed its name to the current Quantegy Recording Solutions.
  • In January 2005, having previously filed for bankruptcy protection, Quantegy closed its manufacturing facility in Opelika.[27]
  • In October 2014, Ampex Data Systems Corporation was sold to Delta Information Systems, but retains the rights to the Ampex name.
  • In 2017, Ampex established a second business unit, Ampex Intelligent Systems (AIS), in Colorado Springs Colorado, and branded its Silicon Valley business unit Ampex Data Systems (ADS).

Record labels

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Ampex Records was started in 1970. Its biggest hit was "We Gotta Get You A Woman" by Todd Rundgren (as "Runt"), reaching No. 20 on the Billboard Hot 100 chart in 1970. Ampex also originated three subsidiary labels: Bearsville, Big Tree, and Lizard. Ampex Records ceased operations around 1973; Bearsville and Big Tree switched distribution respectively to Warner Bros. Records and Bell Records, and Lizard became an independent entity. Later on, Big Tree was picked up by Atlantic Records.

[edit]

In 2005, iNEXTV, a wholly owned subsidiary of respondent Ampex Corporation, brought a defamation lawsuit against a poster on an Internet message board who posted messages critical of them (Ampex Corp. v. Cargle (2005), Cal.App.4th). The poster, a former employee, responded with an anti-SLAPP suit and eventually recovered his attorney fees. The case was unique in that it involved the legality of speech in an electronic public forum.[28]

Since 2014

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After becoming part of Delta Information Systems in 2014, two former subsidiaries of Ampex Corporation continued business as part of the Ampex legacy. Ampex Data Systems Corporation (ADSC) headquartered in Silicon Valley, and its subsidiary, Ampex Japan Ltd. are the only two Ampex businesses that still trade as more than "in name only" entities.

Ampex Data Systems operates out of main three locations in the USA: the headquarters in Hayward, California (about a dozen miles from the Redwood City location in Silicon Valley), a program office in Colorado Springs, Colorado and an engineering center in Las Cruces, New Mexico, as well as from the main Delta HQ in Horsham, Pennsylvania. Ampex continues to produce rugged data storage products used by government, military and commercial customers world-wide.

Since joining Delta, Ampex has grown in revenue and headcount, employing significantly more people in 2023 than were employed under the previous management structure.

Legacy and archives

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The Ampex video system is obsolete, but many thousands of quadruplex videotape recordings remain. Machines that survive are used to transfer archival recordings to modern digital video formats.

Ampex Corporation supported the Ampex Museum of Magnetic Recording, started by Peter Hammar in 1982.[8]

The contents of that museum were donated to Stanford in 2001.[29][30] A project is underway to curate Ampex artifacts in physical and digital form. This project will find a permanent home in Redwood City for the Ampex Museum and digital artifacts will be curated at AmpexMuseum.org[31] This project is being funded by contributions from former Ampex employees.

See also

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References

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Further reading

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Ampex Data Systems Corporation is an American electronics company founded in 1944 by Russian émigré as a spin-off of Dalmo-Victor in , initially focused on manufacturing small motors and generators for military applications during . Postwar, the company pivoted to magnetic recording technologies, achieving pioneering success with the development of the first U.S.-made professional audio tape recorder, the Model 200, shipped in 1948 following a major order from Enterprises. Ampex's innovations extended to video recording with the introduction of the VRX-1000 in 1956—the world's first practical and commercially successful videotape recorder—which used a transverse scanning system on 2-inch tape to enable broadcast-quality video capture, editing, and playback, fundamentally transforming television production and earning an Emmy Award in 1957. The company's early growth was marked by key engineering advancements, including Harold Lindsay's superior playback head in 1946 and Ross Snyder's Sel-Sync technology in 1955 for multitrack , which became standards in . By the 1950s, Ampex dominated the recorder market in radio, , and recording industries, expanding its product line to include models like the 300 series (1949) for and the 400 series (1950) that introduced stereo recording. In 1959, Ampex restructured into specialized divisions for data products, military applications, /video, and international operations, fueling diversification into stereophonic systems, digital storage like the TeraBit in 1970, and products such as the Signature V home videotape system in 1963. Ampex went public in 1953 and experienced rapid expansion, reaching peak annual revenues of $532 million in 1986 amid acquisitions by entities like Signal Companies (1983) and Allied Corporation (1985). The company sold its recording media division in 1995 and shifted toward digital solutions for defense and aerospace, including high-density recorders and rugged storage systems. Today, headquartered in Hayward, California, as a division of Delta Information Systems, Ampex specializes in SWaP-C-optimized (size, weight, power, and cost) data management products for land, sea, air, and space applications, holding ISO 9001:2015 and AS9100D certifications for quality in intelligence, defense, and flight testing sectors.

Founding and Early History

Origins and Establishment

Ampex Electric and Manufacturing Company was founded on November 1, 1944, in , by , a Russian-born electrical who had immigrated to the in 1927. , who had previously worked at and Dalmo-Victor, partnered with T.I. Moseley, president of Dalmo-Victor, to establish the venture, with each holding a 50% ownership stake. The company's name, Ampex, was derived from Poniatoff's initials—A.M.P.—combined with "ex" to signify excellence, a branding choice that reflected his ambition for high-quality engineering. The firm emerged as a spin-off from Dalmo-Victor, where Poniatoff had contributed to the development of small electric motors and generators for military use, particularly in airborne systems during . Ampex's initial operations centered on manufacturing these compact motors and generators to meet urgent U.S. Navy demands for scanners, leveraging Poniatoff's expertise in . Ampex began in modest circumstances, operating out of an abandoned loft in the Dalmo-Victor building on Howard Avenue in San Carlos, which served as its first facility. The initial team was small, consisting of Poniatoff, , and a handful of engineers and technicians recruited from nearby operations, allowing for agile development amid wartime constraints. Incorporated as a in , Ampex transitioned to a corporation in May 1946, setting the stage for postwar expansion into audio recording products. Following the end of in 1945, Ampex shifted its focus toward magnetic recording technologies.

World War II Contributions and Initial Products

During World War II, Ampex contributed to the war effort by manufacturing high-quality electric motors and generators primarily for military radar systems and other defense applications, establishing a reputation for precision engineering. The company, founded in 1944 by Alexander M. Poniatoff, focused on these subcontracted components rather than recording technologies during the conflict. Following the war, Ampex pivoted to magnetic recording, influenced by U.S. Army Major Jack T. Mullin, who had captured and repatriated advanced German tape recorders from Radio . These devices demonstrated superior audio fidelity using paper-based , prompting Ampex to collaborate on adapting the technology for American production. A key advancement came with the adoption of plastic-base () , developed by in collaboration with Ampex engineers around 1947, which replaced brittle paper bases for improved durability and higher . In 1947, Ampex unveiled a of its Model 200 audio during a demonstration for entertainer , who commissioned 20 units for his radio production needs. The first commercial Model 200A units shipped in April 1948, featuring 1/4-inch-wide plastic-base tape running at 30 inches per second (ips) on 14-inch reels, enabling broadcast-quality recording with low wow and flutter. This machine represented Ampex's inaugural commercial product and the first practical in the United States, rapidly adopted by radio stations such as ABC for time-zone delayed broadcasts and program archiving. By 1949, sales expanded to nearly every major U.S. broadcaster, solidifying tape's role over disc recording in workflows.

Audio Recording Developments

Early Tape Recorders

Ampex's entry into professional audio recording began with the Model 300 series, introduced in late spring 1949 as the company's first high-fidelity production designed specifically for broadcast and studio applications. This model featured a three-head configuration—record, playback, and erase—enabling off-tape monitoring during recording sessions, a significant advancement that allowed engineers to verify audio quality in real time without interrupting the process. The recorder utilized 1/4-inch on 10.5-inch reels, with dual speeds of 7.5 and 15 inches per second (ips), though a variant, the Model 301, extended speeds to 30 ips for enhanced performance. Its reached 50–15,000 Hz (±2 dB) at 15 ips, with a exceeding 70 dB, establishing benchmarks for fidelity at the time. The Model 300's design incorporated innovations in head alloy and tape path stability, reducing wow and flutter to less than 0.1% RMS at 15 ips and improving tape interchangeability across machines. Ampex engineer Frank Lennert developed a simplified equalization curve for the series, which directly influenced the National Association of Broadcasters (NAB) standard for magnetic recording, ensuring consistent playback characteristics and promoting industry-wide compatibility. By 1951, major networks such as NBC had integrated the Model 300 into their workflows for live broadcast recording, marking one of the earliest adoptions of magnetic tape for time-delayed radio programming and replacing labor-intensive disc-based methods. The recorder's market impact accelerated in 1952, when sales expanded to networks including , solidifying Ampex's dominance as nearly every U.S. radio station relied on its machines for audio production. This shift enabled more efficient , , and archiving compared to instantaneous disc recordings, transforming radio workflows and extending to early audio tracks. Approximately 20,000 units of the Model 300 transport were produced, underscoring its role in establishing as the broadcast standard through the mid-1950s. In , Ampex addressed the need for mobile recording with the Model 350, a portable variant designed for field use that combined the Model 300's transport with modular electronics in a two-case configuration weighing approximately 50 kg total. Retaining the 1/4-inch tape width and offering speeds of 7.5, 15, or 30 ips, it delivered a comparable of 30–15,000 Hz (±2 dB) at the highest speed, with NAB equalization for seamless integration into professional setups. The Model 350's rugged build and quick setup—under 0.1 seconds for instant start—made it ideal for remote broadcasts, contributing to over 6,000 units sold and further entrenching Ampex's influence in on-location audio capture.

Multitrack and Professional Audio Innovations

Ampex's breakthrough in multitrack recording began in 1955 with the development of Sel-Sync (Selective Synchronization) technology, which allowed for practical overdubbing by enabling recorded tracks to be played back in sync with new recordings using a modified playback head during the recording process. This innovation addressed the synchronization challenges of earlier sound-on-sound techniques and paved the way for expanded track counts. In 1956, Ampex delivered the world's first 8-track tape recorder, dubbed the "Octopus," to guitarist Les Paul, utilizing Sel-Sync on 1-inch tape to facilitate complex layering of instruments and vocals in his home studio productions. Building on this foundation, Ampex introduced the MM-1000 series in , marking the company's entry into 16-track recording with a professional machine using 2-inch tape at speeds of 15 or 30 inches per second (ips), incorporating Sel-Sync for seamless across multiple channels. The MM-1000's and reliable transport system supported the growing demands of rock and production in the late , enabling engineers to capture intricate arrangements without the need for frequent tape bouncing, which preserved audio quality. This era saw Ampex's multitrack systems contribute to the technical advancements that underpinned landmark albums like ' Sgt. Pepper's Lonely Hearts Club Band () and The Beach Boys' Pet Sounds (), where techniques revolutionized studio creativity, though specific machines varied by studio. In the , Ampex expanded the MM-1000 platform to 24 tracks, with models like the MM-1200 introduced around 1973 featuring integrated compatibility with A noise to minimize tape hiss and improve on 2-inch tape at 15/30 ips speeds. These recorders became staples in major studios for their stability and sonic fidelity, supporting the dense orchestration of and productions. To bolster its audio capabilities, Ampex acquired Orradio Industries in 1959, rebranding it as the Ampex Division to enhance in-house tape formulation and coating processes for better performance in professional multitrack applications.

Later Audio Advancements and Decline

In the , Ampex continued to advance analog audio recording technology through its ATR-100 series, which remained a benchmark for mastering despite the industry's growing shift toward digital formats. The ATR-100, originally introduced in 1976, featured innovative capstan-servo technology for precise tape speed control and was widely used in studios for its exceptional and low distortion, supporting speeds up to 30 inches per second on 1/4-inch tape. An updated variant, the ATR-102 released in 1976, incorporated refinements such as improved electronics for better signal-to-noise ratio, solidifying Ampex's reputation for high-fidelity analog reproduction. Ampex made a limited foray into digital audio during this period by developing specialized tape formulations for emerging formats, including oxide-based media for the (Digital Audio Stationary Head) system and Pro-Digit recorders. The Ampex 467 tape, optimized for digital applications, was preferred by many users for its durability and low error rates in stationary-head on 1/2-inch reels, supporting up to 48 tracks. However, Ampex did not produce its own DASH-compatible recorders, focusing instead on tape supply as digital systems like Sony's PCM and early DAT gained traction. This positioned Ampex as a supporter rather than a leader in the digital transition, with sales of analog equipment like the ATR-124 24-track recorder—priced at $62,500 and limited to just 62 units—highlighting diminishing demand. By the early , intensifying competition from fully digital technologies such as compact discs and DAT recorders eroded Ampex's analog audio market share, prompting a strategic retreat. Ampex withdrew from manufacturing tape recorders in , redirecting resources toward video and amid corporate challenges that curtailed further audio R&D. The company's audio legacy persisted through ongoing support for existing ATR series machines, but the focus shifted away from music recording innovations. In 1995, Ampex sold its Recording Media division—responsible for audio tape production—to form Quantegy Inc., effectively ending its direct involvement in consumer and media as digital alternatives dominated. Quantegy operated until filing for in 2004 and ceasing production in 2005. This divestiture marked the decline of Ampex's audio prominence, though refurbished ATR-100 and ATR-102 units continued to be valued in studios for their "analog glue" warmth well into the late and beyond.

Video Technology Innovations

Pioneering Video Recorders

Ampex entered the field of video technology in the early , driven by the need to record broadcasts more efficiently than the prevailing film method. In 1951, the company initiated a project to develop a practical videotape recorder, initially led by engineers Shelby Henderson and later expanded under Charles P. Ginsburg, who joined Ampex that year to head the effort. The team, which included key contributors such as , Alex Maxey, Fred Pfost, and Charles Anderson, faced significant challenges in capturing high-frequency video signals on , ultimately pioneering a transverse scanning approach to enable viable recording speeds. The breakthrough came with the VRX-1000, Ampex's first practical video tape recorder, introduced in 1956 as the world's first commercially successful VTR for broadcast use. This machine employed 2-inch-wide magnetic tape and a quadruplex scanning system, featuring four heads mounted on a 2-inch-diameter drum rotating at 14,400 revolutions per minute (240 revolutions per second) to achieve a writing speed of approximately 1,500 inches per second, allowing the tape itself to move at a more manageable 15 inches per second. Demonstrated at the National Association of Radio and Television Broadcasters (NARTB) convention in Chicago on April 14, 1956, the VRX-1000 received immediate acclaim for delivering broadcast-quality monochrome video, replacing cumbersome film processes and enabling time-shifted transmissions. Its first on-air application occurred on November 30, 1956, when CBS used it to record and rebroadcast the Douglas Edwards with the News program for the West Coast, marking the debut of taped content in network television. The VRX-1000's innovations earned Ampex an Emmy Award in 1958 for engineering excellence in television technology. Ampex collaborated closely with broadcasters like NBC and CBS during development and early deployment, providing prototypes for testing and refinement. Priced at around $50,000, the VRX-1000 was initially accessible only to major networks, solidifying Ampex's dominance in professional video recording. To protect its innovation, Ampex filed key patents in the late 1950s, including U.S. Patent 2,916,547 (filed December 28, 1956, issued December 8, 1959) by Ginsburg and Henderson, which detailed the rotary-head transverse scanning method essential to the quadruplex system. These filings, along with others like U.S. Patent 2,956,114, granted Ampex a near-monopoly on practical video tape recording technology through the early 1970s, licensing the technology to competitors and shaping industry standards. The quadruplex approach remained the broadcast benchmark for over two decades, influencing global television production. Building on quadruplex success, Ampex explored helical scan technology in the early 1960s to address limitations like size and portability. Prototypes culminated in the VR-8000, a commercially available 1-inch helical scan VTR released in 1967, which used tape wrapped at an angle around a slower-rotating drum for more efficient recording. This design enabled smaller, more portable units, such as the 1963 VR-660, a black-and-white NTSC model weighing about 100 pounds and suitable for field use in education and industry. The VR-660 supported recording times of up to 30 minutes on standard reels, offering greater flexibility than stationary quadruplex systems while maintaining professional video quality. These early helical innovations laid groundwork for later consumer formats, though Ampex focused primarily on broadcast and institutional applications.

Analog Video Formats

Ampex played a pivotal role in developing analog video tape formats during the and , transitioning from transverse scan technologies to systems that improved portability, recording duration, and broadcast compatibility. These formats, primarily using 1-inch and 2-inch tapes, addressed the limitations of early video recording by enabling higher-quality color playback, slower tape speeds for longer runtimes, and standardization for industry-wide adoption. Key innovations included the integration of helical scanning to wrap tape around rotating heads, reducing tape consumption while maintaining signal , which became essential for (ENG) and professional broadcasting. The Type A format, introduced by Ampex in 1965, marked one of the earliest standardized 1-inch analog systems. Designated as SMPTE Type A, it utilized open-reel 1-inch tape with an omega-wrap helical configuration, allowing for recording suitable for industrial, educational, and applications. Typical recording times reached up to 20 minutes per reel at a tape speed of approximately 11.25 inches per second, making it practical for field use despite its relatively short duration compared to later formats. This format's facilitated interchangeability among Ampex's Recorder (VPR) series, such as the VPR-5, and helped establish as a viable alternative to bulkier transverse systems. Ampex's 2-inch quadruplex format, epitomized by the VR-2000 series introduced in the mid-1960s, remained the broadcast television standard through the , employing four rotating heads in a transverse scan across wide tape for high-bandwidth color video. The VR-2000, launched around 1964, was the first high-performance quadruplex VTR capable of reliable color fidelity, weighing about 1,300 pounds in its rack-mounted configuration and supporting standard playtimes of around 16 minutes per 10.5-inch reel for broadcasts. Slow-motion models, such as the VR-1200, enabled features like freeze-frame and variable playback speeds, including , through specialized head configurations and servo systems, which were critical for live sports and production while maintaining standard recording times of around 16 minutes. This format's robustness allowed it to dominate studio environments until helical alternatives gained traction. In 1976, Ampex co-developed the Type C format with , creating a 1-inch composite standard that addressed quadruplex's bulk and short runtimes while offering with earlier Ampex systems through retrofittable VPR units. Adopted by the Society of Motion Picture and Television Engineers (SMPTE), Type C used a segmented helical wrap with separate sync tracks, supporting up to 90 minutes of recording on standard reels and features like still-frame, shuttle, and slow-motion playback at resolutions around 300 lines. Its compromise design—balancing Ampex's and Sony's competing proposals—ensured high-quality analog video for professional use, with tape speeds optimized for efficiency in both studio and field settings. Ampex further advanced analog video with the VR-5000 and VR-8000 in the 1970s, enhancing portability and closed-circuit applications. The VR-5000, introduced in 1970 as Ampex's smallest and lowest-priced portable quadruplex VTR, facilitated mobile with its compact design for 2-inch tape handling. Complementing this, the VR-8000, a 1-inch model from 1967 refined in the 1970s, supported educational and training environments with reliable performance. These models extended the format's lifecycle by improving ease of operation and integration in non-broadcast scenarios. Sub-products like the HS-100 and HS-200 disc recorders, launched in and respectively, provided analog slow-motion replay capabilities outside traditional tape s. The HS-100, Ampex's first color video disc recorder, used 16-inch magnetic discs to capture up to 30 seconds of video per side, enabling instant replay and variable-speed playback for sports broadcasting, as demonstrated by ABC's use in events like the World Series of Skiing. The HS-200 expanded this into a full teleproduction , convertible from the HS-100, with computer-controlled consoles for enhanced flexibility in recording every other field for extended slow-motion effects up to 30 seconds. These disc-based innovations complemented tape formats by offering rapid access for live production enhancements.

Digital Video Formats and Processing

Ampex entered the digital video era in the late 1980s with the development of the D-2 format, a professional composite digital videocassette system introduced in 1988 at the NAB Show. This 3/4-inch cassette-based format provided uncompressed digital recording for broadcast and post-production applications, offering superior picture quality and editing flexibility compared to analog predecessors, with large cassettes supporting up to 94 minutes of recording time. D-2 became widely adopted in television facilities for its reliability in handling spot-class electronic news gathering (ENG) and post-production workflows, achieving commercial success throughout the 1990s due to its cost-effective alternative to component formats. Building on this foundation, Ampex introduced Digital Component Technology (DCT) in 1992, marking the company's first use of compression in a professional format. DCT employed intra-frame (DCT) compression at a 2:1 ratio to deliver 10-bit recording on 3/4-inch cassettes, enabling high-quality with reduced bandwidth demands similar to emerging standards like Digital Betacam. This format prioritized conceptual efficiency for editing environments, supporting seamless color grading and effects integration without generational loss. Complementing DCT, Ampex's Data Storage Technology (DST) emerged in the early 1990s as a high-capacity 19 mm system, adapted for video applications in news workflows through compressed encoding akin to early MPEG methods. DST cartridges facilitated extended storage, such as up to two hours of high-definition content, streamlining digital cart and stream tape operations for broadcast news ingestion and playback. Ampex's advancements in video processing during this period included the Ampex Digital Optics (ADO) system, launched in the 1970s and refined through the for real-time digital effects. ADO enabled frame manipulation in two and three dimensions, such as resizing, , and keying, without analog degradation, becoming a staple for and effects in shows like segments and network broadcasts. In the , Ampex extended this expertise to production switchers, exemplified by the Vista and Century models, which supported multi-channel live TV mixing with integrated digital effects for seamless transitions and in studio environments. By the 1990s, Ampex contributed to the shift toward nonlinear workflows with editing controllers like the series, evolving from linear tape systems to support early digital integration for frame-accurate on VTRs. These controllers facilitated complex and effects synchronization, bridging analog tape operations with emerging digital tools. In , amid industry transitions, Ampex placed its recording systems division—encompassing video tape operations—up for sale, signaling a strategic pivot toward and accelerating the company's focus on digital technologies.

Data Storage and Diversification

Shift to Data Systems

In the early 1990s, amid the obsolescence of its analog tape business due to advancing digital technologies, Ampex pivoted toward high-performance data storage solutions, particularly for defense and aerospace applications. The company shifted emphasis from broadcast videotape recording to digital formats, introducing innovations like the Data Storage Technology (DST) format in 1992—a 19 mm magnetic tape system designed for high-capacity, reliable data archiving and retrieval in demanding environments. This move was driven by financial pressures and market maturity in consumer and broadcasting sectors, allowing Ampex to leverage its magnetic recording expertise in military telemetry and flight test instrumentation. For instance, Ampex developed early all-digital flight test recorders for the U.S. Department of Defense, enabling precise capture of aerospace data such as sensor inputs and telemetry signals. A key restructuring occurred in 1994 when Ampex's parent company, NH Holding Inc., filed for Chapter 11 bankruptcy protection, leaving Ampex to assume substantial pension obligations for legacy plans. This event, combined with ongoing industry shifts, prompted further divestitures, including the sale of its Recording Media division in 1995 to streamline operations and maintain profitability. By the late , Ampex had become a public entity following its acquisition by investment group in 1987, focusing resources on rugged data systems for . These efforts positioned the company to supply specialized recorders for applications, such as high-speed during flight tests. Entering the 2000s, escalating pension liabilities from the 1994 restructuring culminated in Ampex's own Chapter 11 filing in March 2008, which facilitated a debt-for-equity swap and the sale of remaining audio and video assets to concentrate solely on . The reorganization led to the rebranding of its core operations as Ampex Data Systems Corporation in 2008, emphasizing ruggedized solutions for defense and storage. Key products during this period included the DST-based systems adapted for use, providing secure, high-density storage for data in harsh conditions. In the , Ampex intensified development of portable, resilient storage units for airborne and ground applications, building on its aerospace heritage. In October 2014, Ampex Data Systems was acquired by Delta Information Systems, Inc., integrating it into a broader portfolio of telemetry and video solutions while retaining its focus on high-performance storage. The company relocated its headquarters to , in 2016, supporting continued innovation in ruggedized systems. As of December 2022, Ampex employed approximately 32 people, reflecting its streamlined operations as a specialized provider in defense data technologies.

Modern High-Performance Storage Solutions

In the 2020s, Ampex Data Systems Corporation has concentrated on developing rugged, high-performance solutions tailored for defense and environments, emphasizing high-speed and secure mission handling. Key products in this portfolio include the TuffServ series, such as the TuffServ Recorder/Server-X (TRS-X) and TuffServ 640, which utilize NVMe-based solid-state drives for rapid ingestion and retrieval. These systems support sustained rates exceeding 10 GB/s through interfaces like 100 GbE and 10 GbE, enabling efficient capture of high-volume in real-time operations. For instance, the TRS-X features a removable storage tray capable of handling over 180 TB of capacity while processing dual 100 GbE channels for raw RF and video at rates up to 100 Gb/s. These storage solutions are optimized for demanding applications in military , , and , , and reconnaissance (ISR) missions, where reliability under extreme conditions is paramount. They comply with standards for data bus integration, allowing seamless connectivity with legacy and modern for real-time monitoring and post-mission . In flight testing scenarios, the TuffServ 640 provides up to 300 TB of removable storage, supporting high-throughput ingestion of streams, HD video, and data while maintaining operational integrity in harsh environments like high-vibration or temperature extremes. Ampex's designs also incorporate Size, Weight, and Power Consumption (SWaP-C) optimizations, making them suitable for deployment on unmanned aerial vehicles (UAVs) and attritable platforms. As of 2025, Ampex remains an active innovator in cybersecurity-integrated storage, headquartered in Hayward, California, with a focus on edge computing enhancements for national defense needs. Recent advancements from 2023 to 2025 include enhanced processing capabilities within systems like the TuffLITE series for tactical edge applications. These integrations feature hardware-accelerated encryption and secure boot mechanisms to protect against cyber threats at the tactical edge, aligning with evolving requirements for contested environments. The company's portfolio continues to evolve through ongoing R&D, prioritizing scalable architectures that support artificial intelligence and multi-domain data fusion without compromising security or performance.

Challenges and Corporate Evolution

Technical Issues like Sticky-Shed Syndrome

Sticky-shed syndrome, a prevalent degradation issue in magnetic tapes, arises from the hydrolysis of the polyurethane binder in the back-coating layer, where absorbed atmospheric moisture breaks down the chemical bonds, causing the binder to become gummy and shed particles during playback. This phenomenon primarily impacts polyester-based tapes manufactured in the 1970s and 1980s, leading to sticking, squeaking noises, and potential loss of audio or video signals as the magnetic oxide layer separates from the base. Among Ampex products, notably affected audio tapes such as the 456, 457, and 499 series, commonly used in professional 1/4-inch reel-to-reel formats for multitrack recordings, as well as 2-inch quadruplex and 1-inch Type C video tapes employed in broadcast applications. These issues were first widely reported in the late 1980s as aging tapes began failing in studios and archives, with symptoms including residue buildup on playback heads that could damage equipment and recordings. To mitigate sticky-shed syndrome, a common temporary solution involves the affected tapes in a low-heat oven or dehydrator at approximately 50°C (122°F) for 24 hours, which drives off excess moisture from the binder and restores playability for weeks to months, though repeated treatments may be necessary. For long-term preservation, experts recommend transferring the content to digital formats immediately after baking to avoid further degradation, as the process does not reverse the underlying . The impact of has been profound in cultural archives, where vast collections of Ampex tapes holding irreplaceable audio and video material—such as historic broadcasts and music masters—face playback risks, necessitating specialized restoration efforts by institutions worldwide. In response during the 1990s, Ampex (and later its successor Quantegy after the 1995 spin-off) reformulated tape binders to eliminate the problematic back-coating, producing more stable media that reduced future occurrences of the syndrome. Ampex faced several significant legal challenges and corporate restructurings throughout its history, particularly related to patent disputes and financial difficulties in the video and sectors. In the mid-1950s, Ampex entered into a cross-licensing agreement with RCA to facilitate the development and commercialization of quadruplex (VTR) technology, allowing RCA to utilize Ampex's innovations in color video recording while sharing related s. This arrangement helped establish industry standards but set the stage for later conflicts as competitors emerged. During the 1960s, Ampex pursued litigation against over the latter's PV-100 VTR system used for , which Ampex claimed violated its core VTR patents originally developed for the quadruplex format. The lawsuit, filed in , stemmed from an earlier 1960 technology-sharing agreement between the companies that had broken down, leading Ampex to seek royalties and restrictions on Sony's use of related technologies. Concurrently, Ampex defended against antitrust suits in , where Mach-Tronics Inc. and Precision Instruments Inc. alleged monopolistic practices in the sale of audio and video recording equipment; a awarded each $600,000 in . The company's most substantial restructuring occurred in the late 2000s amid intensifying competition in digital storage markets and pension funding shortfalls. In March 2008, Ampex and its U.S. subsidiaries filed for Chapter 11 bankruptcy protection in the U.S. Bankruptcy Court for the Southern District of New York, citing approximately $133.6 million in liabilities against $26.5 million in assets, primarily due to inability to service debt held by Hillside Capital Advisors and meet obligations. As part of the proceedings, Ampex's Class A was delisted from effective May 8, 2008, following notifications of non-compliance with listing standards triggered by the filing. The bankruptcy plan, confirmed by the court on July 31, 2008, restructured the company's debt and equity, with Hillside Capital emerging as the majority shareholder, effectively transferring control to the while allowing Ampex to continue operations focused on high-performance solutions. This reorganization reduced immediate financial pressures but marked a pivotal shift in ownership, enabling survival in a digital-dominated market. In October 2014, Ampex Data Systems Corporation was acquired by Delta Information Systems Inc., operating thereafter as a wholly owned to bolster Delta's portfolio in ruggedized data recording technologies for defense and applications.

Branding, Media, and Legacy

Branding and Record Labels

Ampex's visual branding originated in the mid-1940s with an initial logo design that evolved over the subsequent decades to reflect the company's growing focus on audio and video technologies. From 1944 to 1950, the logo featured a simple emblematic style, transitioning in 1950 to a more refined version that lasted until 1963, after which a clean, sans-serif wordmark became the standard and remains in use today. During its peak in professional audio and video, Ampex introduced sub-brands like "Professional Audio" and "Video Systems" to delineate its product lines, emphasizing reliability and innovation in broadcasting and recording applications. In the 1950s, Ampex ventured into the music industry through its subsidiary operations for prerecorded magnetic tape releases, licensing content to complement its tape recorders and targeting home and professional users. These tapes featured works from prominent artists, including recordings associated with Les Paul, who collaborated closely with Ampex on multi-track audio innovations. The taped music initiative, which tied directly to Ampex's early audio recording developments, was discontinued in the 1960s as the company shifted priorities. Later, in the late 1960s, Ampex briefly expanded into vinyl records with Ampex Records, a label distributed by Warner Bros. that released albums by artists such as Todd Rundgren and Jesse Winchester before folding in 1973. Ampex's marketing in the highlighted the transformative quality of its equipment through campaigns promoting high-fidelity sound and video reproduction for broadcasters and studios. By the 1990s, as the company diversified into , its branding pivoted to emphasize rugged, high-performance solutions for defense and industrial applications, aligning with the name Ampex Data Systems Corporation. This reorientation culminated in the current branding, which underscores secure and storage systems.

Milestones, Archives, and Industry Influence

Ampex achieved several landmark recognitions for its innovations in recording technology. In 1957, the company received an Emmy Award from the National Academy of Television Arts and Sciences for the introduction of the first practical videotape recorder, the VRX-1000, which enabled time-delayed broadcasts and transformed television production workflows. Preservation efforts have played a crucial role in safeguarding Ampex's legacy through dedicated archives and collaborative initiatives. The Ampex Museum and Historical Collection, originally established in 1982 and now housed at Stanford University's Silicon Valley Archives under the auspices of the Audio Engineering Society (AES) Historical Committee, maintains an extensive array of artifacts, including early tape recorders, prototypes, and documentation that chronicle the evolution of magnetic recording. Ampex's technologies profoundly shaped multiple industries by establishing foundational standards and enabling new capabilities. Its systems, introduced in the 1950s with innovations like Sel-Sync for , standardized layered audio production in pop and , allowing artists such as to create complex soundscapes that influenced genres from ' experimental albums onward. The introduction of practical videotape recording in 1956 revolutionized television syndication by permitting efficient time-zone adjustments and repeatable playback, which expanded network programming distribution and reduced reliance on costly film transfers. In , Ampex's high-performance tape systems were integral to missions, including in 1969, where modified Ampex VR-660C recorders captured signals critical for mission success and real-time monitoring.

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