VanWhy
Well-known member
- Build Rating
Yo @cdwillis this is a great circuit!
I'm super thankful he sent me this one. I am a big fan of Muffs and MKII and MKIII TBs so this was right up my alley. To get a more detailed explanation of what's this is, refer to his build report
https://forum.pedalpcb.com/threads/powderkeg.19330/
Essentially it is a combination of a Russian muff and a MKII/MKIII TB. And the best part it has a bias pot for some very cool sag-like/voltage-starve-like functionality.
I went with 2N3903 transistors because they were the lowest hfe NPN silicons I had. But, I think it sounds great with a little lower hfe. I socketed them in case I want to experiment but for now I think it sounds awesome.
My mistake was I initially installed a B100K pot for the bias and that caused the bias to be useless only at the very end of the sweep. As seen in the gut shot. After I re-read @cdwillis report again, I went back and replaced it with a B10k pot and the sweep is much better.
One thing I will not on the layout is that I much more prefer how the jack input/output connections are on the tip of the board like this one. I just think it's a cleaner look.
Not super happy with how my enclosure drilling came out or how the color came out but I really dig the powderkeg image.
Anyway, Kudos @cdwillis !
Also check out @BuddytheReow build report on this one. Great write up and awesome looking paint job.
I'm super thankful he sent me this one. I am a big fan of Muffs and MKII and MKIII TBs so this was right up my alley. To get a more detailed explanation of what's this is, refer to his build report
https://forum.pedalpcb.com/threads/powderkeg.19330/
Essentially it is a combination of a Russian muff and a MKII/MKIII TB. And the best part it has a bias pot for some very cool sag-like/voltage-starve-like functionality.
I went with 2N3903 transistors because they were the lowest hfe NPN silicons I had. But, I think it sounds great with a little lower hfe. I socketed them in case I want to experiment but for now I think it sounds awesome.
My mistake was I initially installed a B100K pot for the bias and that caused the bias to be useless only at the very end of the sweep. As seen in the gut shot. After I re-read @cdwillis report again, I went back and replaced it with a B10k pot and the sweep is much better.
One thing I will not on the layout is that I much more prefer how the jack input/output connections are on the tip of the board like this one. I just think it's a cleaner look.
Not super happy with how my enclosure drilling came out or how the color came out but I really dig the powderkeg image.
Anyway, Kudos @cdwillis !
Also check out @BuddytheReow build report on this one. Great write up and awesome looking paint job.
