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U-Matic Videocassette All

U-Matic Videocassette ; Ampex; San Carlos, (ID = 1784745) Misc
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U-Matic Videocassette ; Ampex; San Carlos, (ID = 1784745) Misc
Ampex; San Carlos,: U-Matic Videocassette [Misc] ID = 1784745 867x1040
Select picture or schematic to display from thumbnails on the right and click for download.
For model U-Matic Videocassette All, Ampex; San Carlos, CA:
Ampex U-Matic Master Broadcast Videocassette 197 / Ebay auction by user kmedien 230884349425
 
Country:  United States of America (USA)
Manufacturer / Brand:  Ampex; San Carlos, CA
Year: 1971 Category: Miscellaneous (Other, Various) - see notes
Wave bands - without
Details Special Tape or Cassette-Format
Power type and voltage No Power needed
Loudspeaker - - No sound reproduction output.
Power out
from Radiomuseum.org Model: U-Matic Videocassette [All] - Ampex; San Carlos, CA
Material Modern plastics (no Bakelite or Catalin)
Shape Miscellaneous shapes - described under notes.
Notes

This page is for all AMPEX labeled U-Matic type Video Cassette Tapes for all TV standards (Low- & Hi Band version).

Please do not modify this page.

Load only pictures with all data in the picture legend!

Bitte nur Bilder hochladen, alle Informationen/Daten in die Bildlegende.

 

History (Extracts taken from Wikipedia):

"U-matic is an analog recording videocassette format first shown by Sony in prototype in October 1969, and introduced to the market in September 1971.

It was among the first video formats to contain the videotape inside a cassette, as opposed to the various reel-to-reel or open-reel formats of the time.

Unlike most other cassette-based tape formats, the supply and take-up reels in the cassette turn in opposite directions during playback, fast-forward, and rewind: one reel would run clockwise while the other would run counter-clockwise. A locking mechanism integral to each cassette case secures the tape hubs during transportation to keep the tape wound tightly on the hubs. Once the cassette is taken off the case, the hubs are free to spin. A spring-loaded tape cover door protects the tape from damage; when the cassette is inserted into the VCR, the door is released and is opened, enabling the VCR mechanism to spool the tape around the spinning video drum. Accidental recording is prevented by the absence of a red plastic button fitted to a hole on the bottom surface of the tape; removal of the button disabled recording.

As part of its development, in March 1970, Sony, Matsushita Electric Industrial Co. (Panasonic), Victor Co. of Japan (JVC), and five non-Japanese companies reached agreement on unified standards.

The videotape was 3⁄4 in (1.9 cm) wide, so the format is often known as 'three-quarter-inch' or simply 'three-quarter', comparing to other open reel videotape formats of the same vintage, such as 1 in (2.5 cm) type C videotape and 2 in (5.1 cm) quadruplex videotape. The first generation of U-matic VCRs were large devices, approximately 30 in (76 cm) wide, 24 in (61 cm) deep, and 12 in (30 cm) high, requiring special shelving, and had mechanical controls limited to Record, Play, Rewind, Fast-Forward, Stop and Pause (with muted video on early models).

Later models sported improvements such as chassis sized for EIA 19-inch rack mounting, with sliding rack rails for compressed storage in broadcast environments, solenoid control mechanics, jog-shuttle knob, remote controls, Vertical Interval Time Code (VITC), longitudinal time code, internal cuts-only editing controls, "Slo-Mo" slow-motion playback, and Dolby audio noise reduction.

U-matic was named after the shape of the tape path when it was threaded around the helical scan video head drum, which resembled the letter U.

Betamax used this same type of "U-load" as well. Recording time was limited to one hour.

... Sony shifted U-Matic's marketing to the industrial, professional, and educational sectors. U-Matic saw even more success from the television broadcast industry in the mid-1970s, when a number of local TV stations and national TV networks utilized the format when its first portable model, the Sony VO-3800, was released in 1974. This model ushered in the era of ENG, or Electronic News Gathering, which eventually made obsolete the previous 16mm film cameras normally used for on-location television news gathering. Film required developing which took time, compared to the instantly available playback of videotape, making faster breaking news possible."

Model page created by a member from A. See "Data change" for further contributors.



All listed radios etc. from Ampex; San Carlos, CA
Here you find 68 models, 64 with images and 18 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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