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The 1/4 inch Akai is a portable helical scan EIA and CCIR analog recording video tape recorder (VTR) with two video record heads on the scanning drum. The units were available with an optional RF modulator to play back through a TV set, as well as a detachable video monitor. The Akai Electric Ltd. VTR plant was in Tokyo, Japan. ==Early B&W models== *Akai model VTS-100 was introduced in 1967 and was a B&W portable VTR with a one tube camera *The next models, VTS-110 and VTS-120, had similar specifications: * *S/N > 40 dB * *Playback: about 200-lines of image resolution * *Capstan Tape speed (EIA) 11.25 inches per second (20 minute reel) / (CCIR) 23.85 cm/s (24 minute reel) * *VTR Weight: 11 lb. Camera Specs: *One 2/3" Vidicon video camera Akai produced two types of black and white VTR using 1/4 inch tape: Portables using an open reel of 13 cm diameter (VT-100/-110/-120), and a single stationary model using a 21 cm open reel, designated VT-700. The model shown here, X500VT, was sold only in Japan and the United States, and in very low quantities. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Akai videotape format」の詳細全文を読む スポンサード リンク
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