Jump to content
The Classic Speaker Pages Discussion Forums
Sign in to follow this  

KLH Model 20 Bias and trim adjustments

Recommended Posts

Hi folks,

I picked up a KLH model 20 with AM and will soon recap it.

There are trim pots on each audio pre diver boards and there are trim pots next to the output transistors.

I assume the pots are for bias and idle current. Does anyone know the correct procedure and setting for these?

A real bona-fide service manual would be great but I can only find a schematic and it doesn't say how to adjust or give meaningful voltages.




Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this