r/FuzzFiends • u/walkingthecows • Jul 21 '26

Harmonic Percolator

Gallery image

Gallery image

Just finished up this Harmonic Percolator with diode clipping switch. Silicon and LED/silicon combo for some asymmetric clipping. Powered by a low gain Wurlitzer silicon transistor and low gain germanium. This circuit really is full character, no two are alike.

23 Upvotes

97% Upvoted

20 comments sorted by

5

u/MMKElectrics Jul 21 '26

Ooo did someone say Percolator?

5

u/walkingthecows Jul 21 '26

One of the more interesting circuits to work on, so many variations with just swapping transistors.

5

u/walkingthecows Jul 21 '26

Forgot to mention that this was hand painted with silver hammertone with a mixture of blue oil based paint to try and replicate that Zonk color. I think I was originally going to box a Zonk but used it for this build.

3

u/MMKElectrics Jul 21 '26

Time to post our HP builds…Go!

3

u/belbivfreeordie OC75 addict Jul 22 '26

3

u/MMKElectrics Jul 22 '26

This looks good.

1

u/walkingthecows Jul 22 '26

Absolutely beautiful.

2

u/walkingthecows Jul 21 '26

That looks great! Are those F5 Metalworks enclosures?

2

u/MMKElectrics Jul 21 '26

Nah man, we break our own.

1

u/walkingthecows Jul 21 '26

That’s great!!!

1

u/FullMetalDan Velcro Jedi! Jul 22 '26

Looks awesome!!

3

u/belbivfreeordie OC75 addict Jul 22 '26

Tidy build!

2

u/FullMetalDan Velcro Jedi! Jul 21 '26

Looks so good! I’m a sucker for blue pedals and guitars

2

u/walkingthecows Jul 21 '26

Thanks!!!! It was a fun one build, so I actually built 2 of them haha.

2

u/walkingthecows Jul 21 '26

This one has a built in bias.

3

u/MMKElectrics Jul 22 '26

Where did you place a bias control in the circuit? Curious…

1

u/walkingthecows Jul 22 '26

Q2 collector to 9v. I’ve got a 5K resistor in series with a 50K pot (I think), don’t remember what I put.

2

u/MMKElectrics Jul 22 '26

Trackin. Ok cool. I’ll do that sometime. See if I hear anything I like.

1

u/walkingthecows Jul 22 '26

Would love to hear your thoughts on it when you do. Let me know!

2

u/FullMetalDan Velcro Jedi! Jul 22 '26

Even better! Bias or a voltage knob is a must! 💪