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Just an update: I replaced the 12ax7 tubes but still no good. I don't know if the power tubes have anything to do with it; shouldn't they also affect channels 1 & 2?

Hi, I posted a question on the tube forum a month ago asking about a problem I encountered regarding channels 3 and 4 on my roadster combo. Here's the link: http://forum.grailtone.com/viewtopic.php?t=26233&highlight=vol+volume+loss Anyways, the problem I'm having is that I seem to have lost...

Hi, I recently had a problem with my roadster regarding channels 3 and 4. Channels 1 and 2 seemed to be working fine (volume-wise) but once I switched to either 3 or 4 I could barely hear anything. I'd have to turn the volume to 12 just so that I could here something. Anyone know why this is...