Here you go. I'm listening and the left channel slowly fades away...Ok, what's up?
Not batteries, or tubes or cold solder joint...ready,? An easy fix. It was the On/off selector switch.
A bad switch. Hmmm. Found that if i apply slight pressure downward on the selector switch...it will cut out on the left channel...
Will replace, but thought for future Quickie builders, a helpful tip to check.
Bare