| 摘要 |
<p>PURPOSE:To attain a rapid traverse or rewind action of a tape recorder at one side with no disturbance even in case the other tape recorder is kept under a reproduction mode, by controlling the revolution of a motor which drives a magnetic tape. CONSTITUTION:When the 1st tape recorder is set under a reproduction mode, a switch 1 is closed with a control switch 7 opened. Under such conditions, the 2nd tape recorder is set in a fast traverse or rewind mode. Then a switch 2 is closed and a control switch 8 is kept closed respectively. Thus a bias current flows to the base of a transistor TR23 through the switch 8 and a diode 16. Then the TR23 conducts and a control TR6 also conducts when the switch 2 is closed. Thus a motor 4 connected to the collector 6 of the TR6 is revolved to give the fast traverse or rewind action to the 2nd tape recorder.</p> |
