Another raw B+ test question

Rockyhill · 4469

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Offline Rockyhill

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on: November 12, 2023, 04:25:09 AM
My raw B+ measures 340vdc. A/C line is 121v. Thoughts? Thanks.

Rob M

Offline Paul Birkeland

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Reply #1 on: November 12, 2023, 05:29:03 AM
Can you post a quick build photo showing the power transformer wiring just to be sure?  340V is a little bit on the high side, but not necessarily an issue if there isn't a miswire on the power transformer.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Rockyhill

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Reply #2 on: November 12, 2023, 06:45:03 AM
Here's a shot, thanks Paul.

Rob M

Offline AG

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Reply #3 on: November 12, 2023, 06:53:51 AM
hi,
 the second resistor looks unsoldered IMO.

AG.

“Without music life would be a mistake”

Offline Rockyhill

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Reply #4 on: November 12, 2023, 07:11:35 AM
From that angle it looks that way but it really is soldered. Plus those r's are for the heaters.

Rob M

Offline Paul Birkeland

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Reply #5 on: November 12, 2023, 07:13:20 AM
You can proceed with the build, no issues there that I can see.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Rockyhill

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Reply #6 on: November 12, 2023, 07:19:19 AM
Thank you!

Rob M

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