belgianbrain
Super Member
A year or so ago I posted a question about this unit - at very low volumes, the left channel kicks in but no right channel. Even the meter indicates no output from the right. I can flip the 20db attenuator and turn up the volume to avoid this. No one seemed to have any suggestions.
Today I've been messing with it. Opened it up to fix a cracked plastic switch on the front. Also deoxit'ed the coupler switch on the rear since I'd never done this. I also checked the voltage bias in Class A/AB and all is right on.
Was playing an audiophile tester CD tonight that outputs sounds of constant volume from alternating speakers and, as I always suspected, even at normal volumes the right channel is a tad weaker.
I can balance it out using the balance control if I put it around the 18-16 mark.
This unit has been completely restored by me - recapped entirely, new relays, new transistor grease, etc.
Any ideas?
I attach a pic just for fun.
Today I've been messing with it. Opened it up to fix a cracked plastic switch on the front. Also deoxit'ed the coupler switch on the rear since I'd never done this. I also checked the voltage bias in Class A/AB and all is right on.
Was playing an audiophile tester CD tonight that outputs sounds of constant volume from alternating speakers and, as I always suspected, even at normal volumes the right channel is a tad weaker.
I can balance it out using the balance control if I put it around the 18-16 mark.
This unit has been completely restored by me - recapped entirely, new relays, new transistor grease, etc.
Any ideas?
I attach a pic just for fun.