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Hoffman Amps Forum image Author Topic: Blues Jr Schematic VS layout  (Read 2038 times)

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Offline Room335

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Blues Jr Schematic VS layout
« on: January 12, 2023, 10:05:13 pm »
Is the 1n4007 backwards on the layout VS the schematic?  see attachment.

My first build - I know I should have started with something simpler but my Blues JR had some serious issues so I started from scratch. Thanks for your help.

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Offline sluckey

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Re: Blues Jr Schematic VS layout
« Reply #1 on: January 12, 2023, 10:23:23 pm »
Quote from: Room335 on January 12, 2023, 10:05:13 pm
Is the 1n4007 backwards on the layout VS the schematic?
no
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A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline EL34

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Re: Blues Jr Schematic VS layout
« Reply #2 on: January 13, 2023, 07:34:51 am »
Quote from: Room335 on January 12, 2023, 10:05:13 pm
Is the 1n4007 backwards on the layout VS the schematic?  see attachment.

My first build - I know I should have started with something simpler but my Blues JR had some serious issues so I started from scratch. Thanks for your help.
No, the documents are correct
The diode is making negative voltage for the bias circuit
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