Dynamic mic impedance matching

[AA1QD]

Years ago there was a common modification to use a regular dynamic mic on radios that came with electret condenser. You added a ceramic disk cap to the audio wire of the mic. For the life of me I can't recall the value. Was it .1uF? Anyone?

 

[nomadradio]

That should do it.

73

 

[AA1QD]

Ok thank you sir

 

[sp5it]

Capacitor in series works as highpass filter. Lower value, less low/mid, lower output signal from cartridge.
I would use 1uF to not limit it, inside radio there are circuits will take care of it.
Mike