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JPS5929897

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DESCRIPTION JPS5929897
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a circuit diagram showing a conventional microphone input circuit, FIG. 2 is a circuit
diagram showing one embodiment of the microphone input circuit of the present invention, and
FIGS. 3 and 4 are the microphones shown in FIG. It is a circuit diagram explaining operation of an
input circuit. ???? ??? 14 ииииииии Input jack (microphone jack), 3.7 ииииии Amplifier circuit, 4.8
ииииииии Volume control circuit (volume control volume), 10.11. ... Volume for moving the sound
image, 15 to 18 и и и и и и Switch means, 19 to 22 и и и и и и Elastic contact pieces, 23 to 26 и и и и и и
Switch contact pieces, 27 to 34 и и Fixed contact piece between.
10-05-2019
1
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