| 摘要 |
<p>PURPOSE:To inform a user of the switching of an operation by an oscillation sound by generating the oscillation sound by operating a low frequency oscillator instantaneously by the output of a control circuit to input the signal of a remote operating switch, and impressing it to a headphone. CONSTITUTION:When the remote operating switch 4 of a remote control part 2 is depressed, its signal is inputted to the control circuit 6 built in a tape recorder main body 3, and a switching transistor 11 is turned on by the output from the control circuit 6, and the low frequency oscillator 12 is operated instantaneously so as to generate the oscillation sound of audio frequency. The generated oscillation sound is impressed upon a headphone output, and informs the user carrying the headphone with him that the tape recorder main body 3 receives the instruction of the remote operating switch 4 and switches the operation by the oscillation sound.</p> |
