| 摘要 |
a video tape housing (1) with a case (3) for a dry cell, a main switch (4) which is connected to the housing during loading ; a reel operating means for stopping and releasing a supply reel (6) by the action of a pushing part (7) ; a carrier box (20)(18) for demagnetizing sound and video with sound and video demagnetizing coils (18)(16) ; an elastic member, whose one end is fixed to the supply wheel, for pushing the carrier box to stick to the video and sound head ; a circuit unit for demagnetizing the video and sound head by generating demagnetizing pulse in front of the head drum, which rotates at constant speed.
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