Magnetic recording and playback apparatus

Details Magnetic recording and playback apparatus Magnetic recording and playback apparatus

G - Physics

11

B

352/20.51

G11B 15/12 (2006.01) G11B 27/36 (2006.01) G11B 31/00 (2006.01)

Patent

CA 1170357

SO 1383 ABSTRACT OF THE DISCLOSURE A magnetic tape recording and playback apparatus, selectively changeable between recording, playback, and s-top modes, includes a recording/playback transducer, a line amplifier connected during recording to amplify the signal to be recorded by the transducer and during playback to amplify the signal picked up by the transducer; a power amplifier to amplify the signal provided by the line amplifier to drive an acoustic transducer; and a level indicator for selectively indicating the output level of the line amplifier and of the power amplifier. A switch circuit automatically connects the level indicator to the line amplifier when the recording mode is selected-and to the power amplifier when either the playback or stop mode is selected. When the apparatus is in the playback mode, the level indicator can be coupled to the line amplifier by actuation of a push button or other manual switch. In one possible embodiment, the switching circuit includes a flip- flop circuit; in another embodiment, the switching circuit includes a solenoid-type plunger switch. -1-

370197

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