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Ranger RCI-2970DX MIC connection ?

Thread starter OZ1CD
Start date Jul 10, 2025

O

OZ1CD

Member

Jul 10, 2025

#1

In the schematics pin4 on the mic plug is N/C but when I open and look there is a 8v circuit connected to it, where can I find something about this ?

nomadradio

Analog Retentive

I Support WorldwideDX.com!

Jul 13, 2025

#2

It's there to power a microphone with a DTMF touch-tone pad or echo without a battery. Ranger used to sell those.

73

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