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[andywander]

what is a "video BB"?...

[andywander]

I've done it once or twice...thanks for reminding me of this technique!

[andywander]

just do a quick test wire-up of the mic circuit.

i will bet that with just a diode, you don't get any switching noise on the mic line.

[andywander]

Have you tried the circuit with just the diode?

I've built many custom AV systems with relay switching of both mic- and line-level signals,...