The Mule Driver - aka Fischer Meets Dumble

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TUBEDUDE
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Re: The Mule Driver - aka Fischer Meets Dumble

Post by TUBEDUDE »

RJ, how ever did you do the front panel lettering? It looks like a dremel with the ball, except it's too clean and even. Some kind of template? I know if i tried it i would be making another front panel and looking for my dymo labeler. Good job!
Tube junkie that aspires to become a tri-state bidirectional buss driver.
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RJ Guitars
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Re: The Mule Driver - aka Fischer Meets Dumble

Post by RJ Guitars »

TUBEDUDE wrote: Thu Oct 19, 2017 3:22 am RJ, how ever did you do the front panel lettering? It looks like a dremel with the ball, except it's too clean and even. Some kind of template? I know if i tried it i would be making another front panel and looking for my dymo labeler. Good job!
This was done with a laser. In this case the wood is really soft and the laser just sorta blasts away the letters and the bottom of the grooves are not that dark. As I get more used to the amp I am starting to enjoy it a little more and I'm inspired to do a little more with the cabinet to make it look a bit more finished.
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RJ Guitars
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Re: The Mule Driver - aka Fischer Meets Dumble

Post by RJ Guitars »

I updated the schematic and layout to match the as built version... those are posted on page 1.
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dorrisant
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Re: The Mule Driver - aka Fischer Meets Dumble

Post by dorrisant »

Thanks for that rj... You didn't report any trouble with squealing so I assume I may have something wrong with my iteration. If the values match it may be a proximity related issue. On to the chopsticks as xtian mentioned before.
"Education is what you're left with after you have forgotten what you have learned" - Enzo
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RJ Guitars
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Re: The Mule Driver - aka Fischer Meets Dumble

Post by RJ Guitars »

dorrisant wrote: Sat Oct 21, 2017 2:48 am Thanks for that rj... You didn't report any trouble with squealing so I assume I may have something wrong with my iteration. If the values match it may be a proximity related issue. On to the chopsticks as xtian mentioned before.
Tony, nope, no squealing on this unit. This is one of the quietest amps I've built and I can't really say I can complete explain that. I talked about my grounding scheme earlier which seems to have been a successful. I also used a lot of coax wire to move the signal between stages and maybe that is part of it as well.
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dorrisant
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Re: The Mule Driver - aka Fischer Meets Dumble

Post by dorrisant »

Coax... Maybe I need more. I always try to use as little of it as possible. Also, my build is quite a departure from any of HAD's layouts. That could be it.
"Education is what you're left with after you have forgotten what you have learned" - Enzo
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