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Original Message
RE: Fired up the amp with variac and dim bulb tester...nothing
Posted by Cory M. on April 20, 2020 at 05:10:08:
Yep, sounds like a dead short if that's all that's happening. The tubes' filaments probably wouldn't be visible 'til around 70 volts. Did you bring it up to full power? Excuse the question, but the incandescent bulb is wired in series with the AC output socket, right? (The duplex receptacle has me guessing).