I just cracked open my AT-6666 stock mic to cannibalize parts to build a better mic without the acoustic deficiencies of the Anytone mic case, plus having the option of adding a noise cancelling electret in the future,
and noticed pin 6 with dc voltage is unused. I also noticed no capacitor inside the mic to prevent dc voltage from feeding back into the audio chain. How does this thing work?
Electret Mic without power?
Discussion in 'CB Radio Forum' started by rabbiporkchop, Feb 28, 2017.
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CW Spook Light Load Member
Looks to me that the schematic is showing a dynamic mic, but that 13 volts is available on the radio connector side for power to an electret if it's equipped with a properly wired cable.
rabbiporkchop Thanks this. -
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That's what confused me. -
CW Spook Light Load Member
rabbiporkchop Thanks this. -
Looks like I got a new project.
If I'm lucky it will sound almost as good as the Heil PR40.
Last edited: Feb 28, 2017
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It's not an electret element.
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Blaskowitz Thanks this.
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