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!!