72 upon depression of the stop button the mode switch 40 is switched to the stop terminal 44 and the switches 30 1 and 30 2 are opened to cause the supply of power supply voltage to each portion of the circuit to be stopped consequently the motor stops its rotation ceasing the generation of the pulse signal from the pulse generator 36 as shown in fig2 a since a signal on the playback terminal 48 of the switch 40 becomes a low level the output signals of the or gates 56 and 58 become low levels as shown in fig2 d and 2e the trigger circuit 74 and monostable multivibrator 76 even when the tape recorder is at a stop mode are energized as they are connected directly to the power supply terminal v dd the trigger circuit 74 detects a fall of the output signal of the or gate 58 which is shown in fig2 e to supply one pulse as shown in fig2 g to the monostable multivibrator 76 the monostable multivibrator 76 delivers a high level signal as shown in fig2 h for a predetermined time period in response to this pulse the output signal of the monostable multivibrator 76 is supplied to the or gate 54 and the output signal of the or gate 54.