variable capacitor (how to use)

Thread Starter

airra mae basas 1

Joined Jul 24, 2017
I'm using a variable capacitor for my AM/FM receiver but it cant receive , i assume that the problem is the var. capacitor.

it is same as this

can some one help me?

what is the purpose of letter D?

thanks (beginner heheh)


Joined Jun 4, 2014
It might be arranged as below but there's no telling the AM side from the FM side without data. D is probably an earth connection for the shaft to eliminate 'hand effect' - a hand being near changing the tuning.


Joined Aug 27, 2015
There is a big difference between AM and FM
Look inside the tuning capacitor. The FM has only a few moving vanes. The AM has lots more.