GHR Audio • 6L6 Vari-Mu Schematic & Layout (unfinished project)

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6L6 Vari-Mu Schematic & Layout (unfinished project)

Posted: Sat Dec 03, 2022 1:09 pm

by Heikki

Schematic

6l60.pdf: (69.36 KiB) Downloaded 699 times

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Layout

layout.pdf: (4.31 MiB) Downloaded 738 times

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B+ regulator schematic

660ps.pdf: (32.7 KiB) Downloaded 668 times

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BOM

6l60.ods: (15.39 KiB) Downloaded 626 times

Missing from the BOM are potentiometers/rotary switches + resistors for ratio, release and attack.

PS BOM

660ps.ods: (18.54 KiB) Downloaded 568 times

Heatsink for Q1 missing from BOM.

Build Pictures

Posted: Fri Feb 17, 2023 8:00 pm

by Heikki

Boards

: A963CCB9-E857-4D82-B319-41E5379D6220.jpeg (2.99 MiB) Viewed 11781 times

Re: Build Pictures

Posted: Mon Feb 20, 2023 4:54 pm

by Heikki

: 6l60-2.jpg (3.09 MiB) Viewed 11774 times

: 6l60-3.jpg (3.21 MiB) Viewed 11774 times

Re: Schematic & Layout

Posted: Thu Jan 04, 2024 2:34 pm

by scott2000

Looking at this thread
https://groupdiy.com/threads/fairchild- ... st-1126299

Would the 660 psu work for what he's trying?

Re: Schematic & Layout

Posted: Fri Jan 05, 2024 6:46 am

by Heikki

It should work and would cost a lot less money compared to tube regulated supply.