The ICs are for the presence boost control. It looks like the bass and treble are discrete. Not sure why full boost would clear things up on the top end. Probably a bad transistor in there somewhere...
RCA BC 100, What to use for input transformer?
- Thread starter substitute
- Start date
Help Support GroupDIY Audio Forum:
Similar threads
Latest posts
-
-
-
-
-
-
Modifying the Collins 356A Mic Pre for variable Negative Feedback Control
- Latest: abbey road d enfer
-