Crack voltages wrong [resolved]

bryan · 415

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Offline bryan

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on: June 01, 2021, 06:50:39 PM
Checked the resistances and they were OK.

Terminals 5 and 9 are around 150V-200V
all other voltages seemed fine.

LED from A3 to center pin is not lighting up
« Last Edit: June 02, 2021, 12:02:24 PM by Paul Birkeland »


Offline Paul Birkeland

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Reply #1 on: June 01, 2021, 08:16:51 PM
What is your voltage at A3?  Are both halves of your 12AU7 glowing?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline bryan

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Reply #2 on: June 02, 2021, 10:40:25 AM
Both sides glow and a3 is at around a volt.

I re-soldered the joints and It seems to have fixed the problems. Thanks for the suggestions.


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