LabGuy's World: Extinct Sony EV/UV series 1" Helical VTR's (1964-69)
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Sony EV-200. B/W, 1 inch, omega wrap, helical scan VTR EV-200: Early 1960's monochrome one inch helical scan, hybrid circuits - solid state mixed with vacuum tubes. It used two large sweep tubes as the motor drive amplifier for the head wheel servo. Photo: Tim Stoffel.
Sony EV-200 1 VTR EV-200: New Photo! A much better photo of the early 1960's monochrome VTR. Photo: www.ebay.com
EV-200R: New photo & info! A self-contained remote control model of the EV-200 "Videocorder" is now available. The new unit includes eight push-buttons on a detachable control panel which can be used up to 300 feet away from the recorder. Controls are "Audio Dub", "Record", "E-E" (electronics - electronics), "Slow", "Fast Forward", "Stop", and "Rewind". The company announced that all existing EV-200's can be retrofitted to accept the remote control unit. Photo & info: Electronics World Magazine - January, 1968.
EV-210: New photo & info! Spec's: Color adaptable (adapter appears in background), 2 video heads, half helical, 1" tape, 8" reels, 7.8 IPS, 63 minute record / playback time, 88 pounds, $3,750 in 1968. Photo & info: Electronics World Magazine - October, 1968.
No photo EV-300: New  info! A compact, portable one inch format video tape recorder which is specifically suited to applications in education, training and CATV distribution. The unit uses one inch video tape and records any composite TV signal with a 60 field frequency, including random interlaced signals. Video recording is accomplished through a rotary, two head scan system. Recording time is 60 minutes on a 2400' reel of tape. Tapes are interchangeable among Sony's EV-200, EV-300 series Videocorders. Standard features are two channel audio, editing and slow motion,  and stop action in the playback mode. The playback picture is continuously variable from still frame to one fifth of normal speed. Audio may be dubbed on channel two after video has been recorded. Automatic shutoff occurs when the tape reaches the end of the reel. Monochrome only. Info: Matt Patoray.

Sony EV-310. Color 1 inch, omega wrap, helical scan VTR

 EV-310: New photo & info! A compact, portable one inch format video tape recorder which is specifically suited to applications in education, training and CATV distribution. The unit uses one inch video tape and records any composite TV signal with a 60 field frequency, including random interlaced signals. Video recording is accomplished through a rotary, two head scan system. Recording time is 60 minutes on a 2400' reel of tape. Tapes are interchangeable among Sony's EV-200 and EV-300 series Videocorders. Standard features are two channel audio, editing and slow motion,  and stop action in the playback mode. The playback picture is continuously variable from still frame to one fifth of normal speed. Audio may be dubbed on channel two after video has been recorded. Automatic shutoff occurs when the tape reaches the end of the reel. Color compatible by the use of an external color adapter. Info & photo #1: Electronics World Magazine - June, 1969.  Second photo: Tim Stoffel.
Sony EV-320 One inch VTR with flying erase heads. EV-320F: New photo! Late 1960's color one inch helical scan, with flying erase heads and "true" full electronic editing performance. 100% solid state. Color capable with the use of the CLP-1B color pack. Photo: Sony service manual.
No photo EV-330TLV: Late 1960's time lapse video tape recorder. Up to 60 hrs recording time on a 1 hr tape. Info: Matt Patoray.
UV-340, One inch, color Editing VTR UV-340: New photo & Info! The last of the one inch color videocorders. From the early 1970's. Fully self contained, no external adapters required to implement color functions. The remote control is model UVR-340. As far as I know, this was the last of the series. Info: Sony service manual. Note: I repaired one of these, for Lockheed space and missiles division, way back in 1983! I had to send one of the deck control solenoids, which had burned out, to a motor rewinding shop and have it refabricated. Parts were no longer available from Sony. It was HUGE! Notice the four "casket" handles on the sides. But, it had excellent image quality! ~LabGuy~
Sony EV / UV One Inch Tape Format Details EV/UV One Inch Tape Format: New photo & Info! Here is the highly detailed diagram of the track pattern produced by the Sony one inch VTR's in this series. Tape speed: 7.8 IPS +/-0.3% (19.88cm/S). Horizontal resolution: Color = 240 lines, Monochrome >300 lines. S/N ratio = 43 dB. Tape: V-12-30A, V-12-60A. Reel: R1-8V. Info: Sony UV-340 service manual.
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Last updated: January 09, 2005