• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Fixed short in a 45

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livingdeliberately

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Joined 2010
#1
I tried the good ol light tapping with the palm of my hand, and that worked for a while, the the tube shorted again.

The filament fused to the grid, not good 😱..

To no avail I could not get it to work. Then I put it in a spare tube tester and gradually increased the voltage on the filament, then shazam... the short was released and the tube tests at 85% in the good range.
I figured what do I have to lose since the tube was not working in the first place. Now amp works fine again.

For how long, no idea, just watching and listening.🙄

As always, mltube
 
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