This Week on the Breadboard: The EHX Black Finger Sustainer

[Chuck D. Bones]

VERIFIED!

Component Side: minor update - I swapped C21 & C22 and made R11 longer


Solder Side:

 

[Chuck D. Bones]

+1

I want/need ALL the DIY compressors.

We'd need to tweak a few caps for bass.

 

[z2amiller]

Goldfinger! (not verified of course)

 

[Chuck D. Bones]

Looks good, but I do not recommend 2N3904 & 2N3906. This circuit needs high gain transistors.
NPN: 2N5210, 2N5088, 2N5089, BC549C (reverse pinout)
PNP: 2N5087, BC560C (reverse pinout)

 

[z2amiller]

Looks good, but I do not recommend 2N3904 & 2N3906. This circuit needs high gain transistors.

Thanks for looking, and thanks for the reminder! I added those part numbers as placeholders since
KiCad doesn't have the 2N508[9/7] pair. I should fix up the silkscreen before having some made.

 

[szukalski]

Looking forward to this one!

 

[Chuck D. Bones]

I would have thought Golden Fleece to be the obvious pedal name for an ovinophile such as yourself.

 

[szukalski]

I didn't want to stray into Mythos trademark territory (though I may do a Golden Grift). If I could get AI to make me a pic of a bond villain sheep, then that would be perfect faceplate art!

 

[cooder]

Here's my incarnation.
I have never gelled with compressors so far, maybe with the exception of the Orange Squeezer, which to me was more a loose boost with character rather than a classic compressor.
This one might sway things different for me, it works great and I will live in the lower range of sustain as there's a lot of squish available when sustain is dimed.
I like it in the lower sustain range to have some dynamics and 'natural feel' retained. This one does that to me and the tone knob helps a great deal too to dial in either before drives or for clean sounds. For drive sounds it defintely helps to get a nice bit of tailwind for long notes singing.
Nice.

 

[stormgio]

Looks amazing! Have you tested with a bass? Curious about. Enjoy it!

 

[cooder]

Looks amazing! Have you tested with a bass? Curious about. Enjoy it!

Cheers. No, I don't have a bass.
Maybe someone else who built it and has a bass could chime in

 

[genXslacker]

That being said, my breadboard is remarkably noise-free.

I've got rev 0.5 on a breadboard now, and I'm genuinely amazed at how quiet it is.

 

[Chuck D. Bones]

That's the genius of putting the OTA in the feedback loop.