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VK is a helical scan analog recording videocassette format developed by Akai in the late 1970s, that is capable of recording and playing back black & white (and later color) video in either EIA (aka RS-170, the 525-line NTSC video standard for North America, Canada, Mexico, & Japan) and CCIR (the 625-line PAL video standard for Europe and other parts of the world). The format employed magnetic tape loaded into a small cassette, and had two video record heads on the scanner. The units had an optional RF modulator to play back to a TV set as well as a detachable video monitor. Akai's plant for the manufacture of VK VCRs was located in Tokyo, Japan. A VK video cassette could record up to 30 minutes of video. ==Early B&W models== *VTS-300 - ½" B&W Video Cassette portable VTR. :It came with a camera, model number VC-300. * VT-350 - ½" B&W Video Cassette portable VTR. :Weighed 24 pounds, without the battery. :It came with a camera also. :A monitor could be added to the side of the VTR. 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 VK」の詳細全文を読む スポンサード リンク
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