Fender Super Reverb PR 469 Burning power tubes

Chuck H

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Join Date: May 2007

Posts: 19850

Location: pacific north west
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#31

04-29-2021, 01:29 AM

Originally posted by J M Fahey View Post

You are measuring at the bias test point but a bad contact can keep that voltage from actually reaching grids.

This^^^^^^^^^^^^^^^^^^^^^^

The socket does show some residue black still in the tight spaces. More cleaning and a re tension (if possible) like Helmholtz suggested. Just to rule it out at least.

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