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Hoffman Amps Forum image Author Topic: Marshall 18w Lite w/6V6; check for errors and suggestions  (Read 6367 times)

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Offline sawdust

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Marshall 18w Lite w/6V6; check for errors and suggestions
« on: November 19, 2008, 04:03:31 pm »
This is my first attempt at drawing a schematic. I took an 18w Lite and changed the output tubes to 6V6, I changed the components to match a 6V6. I think I have it correct but can anyone look and comment, and make any suggestions on component selection.  I included the version of schematic I used to copy from and my version and a gif version. I used the new Jschem to create the schematic. The bias circuity is tapped off a 50v wire on a Fender xfmer I am going to use. Thanks.
« Last Edit: November 19, 2008, 04:40:43 pm by sawdust »
Dave in Dacula

Offline sluckey

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Re: Marshall 18w Lite w/6V6; check for errors and suggestions
« Reply #1 on: November 19, 2008, 05:44:02 pm »
Quote
The bias circuity is tapped off a 50v wire on a Fender xfmer I am going to use.
You'll need to change that 100k bias resistor to something like 470-1000 ohms.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

 


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