On many of the older tube type base radios, there is a capacitor (like a
4uf) on each the pins of the mic connector...like on a 4 pin mic male
connector there might be 4 each caps, wired in series, with a leg of the
cap wired to one of the pins with one leg of the caps going to ground.

Question is:
1-why is this done
2-what is this suppose to do
3- if the caps are not used what will be the outcome

Thanx!!


They are RF bypass caps. They shunt stray RF picked up
by the mic cord to GND before it gets into the 1st audio stage.
See any ARRL handbook for more info.