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Figure 5
WT-700
WT-700
Power and Audio Switches: Located on the top of the case.
Microphone Gain:
Controls the gain of the audio circuit to prevent
under or over modulation.
Microphone Jack: wired as follows:
Pin 1 Ground
Pin 2 Mic
Pin 3 +5 volt bias
Pin 4 +5 volt bias fed through a 3K ohm
resistor for 2 wire electrets.
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