Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => PC Express and JSchem - Schematics and Layout diagrams => Topic started by: Frankenamp on November 30, 2008, 03:29:38 am
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Happy Turkeyday Gentlemen:
I have put most of the tweaked schematic into a layout (I did make a few shortcuts due to space constraints). I would be most appreciative if those of you with a far greater understanding would take a look and see if I have made any egregious errors (or minor screw-ups). Things will appear a bit squeezed because I attempted to compress a 17" board down into a 11" board. I couldn't make SCH do what I wanted, so I found a layout that I could edit to some semblence of what I wanted- Gratitude to Mr. Tubenit. Your Blues Special layout was one schematic layout that my version of SCH would edit without throwing a conniption, thank you.
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Man, I am impressed with your layout!! Looks superb! First glance, I did not see any errors at all.
Can you include a schematic with the layout, please? THANKS for sharing your work, it is appreciated.
Best regards, Tubenit
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Thank you for your kind reply. I am only following your excellent example. (Like a famous scientist once said: "the only reason I can see so far is that I am standing on the shoulders of giants".) I have taken the liberty of editing a schematic to reflect the current layout so far Some of the voltages are guesstimates at this time. If I were to throw a fuse in the B+ supply (I'm paranoid about screwing up something) would 250V .5A be a reasonable value? The WIP schematic is attached. Again, Thanks!
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Thanks for adding the schematic! I value your contribution to the forum and new ideas. I am honestly not sure what voltage for the fuse?? I have just bought what Hoffman sells.!
Doug does use a .5A fuse in the B+ of his Plexi 50w schematic.
With respect, Tubenit
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Tone stack bypass...
You could get the same results by lifting the midrange resistor from ground. You would only need a simple spst switvh too.