Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: bryan on June 01, 2021, 06:50:39 PM

Title: Crack voltages wrong [resolved]
Post by: bryan 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

Title: Re: Crack voltages wrong
Post by: Paul Birkeland on June 01, 2021, 08:16:51 PM

What is your voltage at A3?  Are both halves of your 12AU7 glowing?

Title: Re: Crack voltages wrong
Post by: bryan 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.