What’s on *YOUR* workbench?

Laundryroom David said:
I finally, finally finished up this ‘69 stones drive, biased it by ear, running at 18v. It’s very good. At the rate I’m going, I’ll get a build report up in about a month and my interface game is shit, so some risk inherent in trusting someone else’s ears and gears, but I think this one is well worth building.
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Put C10 and C18 on dpdts and make C10 47n and C18 22n, and ya got yourself the Diamond Drive.

I love both of those pedals, they sound great. I also put another cap on a toggle to change the amount of gain, between high and low, but I can't remember which one it was. I can take a look later if you're interested.
 
I made JAFBMP and when laid it out, for whatever reason the clipping diodes didn’t come over 🤦 so I had to put them on after the fact.

Regardless, it sounds pretty damn cool! Used a combination of the Triangle and some of Skreddy’s values for a nice midrange, non-muddy cross between fuzz and distortion. I dig it.

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Friend's Orchid Tele is back.

I changed it to '50s wiring, we reassembled and then there was bleed through from the neck pup through bridge... back it came.

Opened it up and lost signal to both pups.

Turned out one of the flimsy switch-wires had broken off the switch (switches were untouched in the 50s rewiring).

So I soldered the wire back on the switch and regained activity from bridge pup, but neck pup's signal is still AWOL.

Help me Obi-@MichaelW-Telekenobi, you're my only hope...
 
Redesigning the logic switching for our RMS X100 pedals so there will be one stomp for each of the four modes. The logic all works. I just need to rework the LED driver section with AND gates instead of NAND gates so it will pair up with the tied-low switch logic. Waiting on some CD4081 chips now.

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benny_profane said:
Nice! Glad to see you’ve got it verified. Are you digging it?
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First impressions: if you crank it all the way up, it compresses way, way too much (trying it with a pretty hot bass). At minimum, it still compresses a bit (I'd like 1:1). I'll try getting rid of the 6dB gain in the buffer, that ought to bring it into a better range. It responds very naturally to loudness, I definitely dig the RMS response. I haven't implemented the auto attack/release (the non-linear capacitor in the RMS detector). I will do that next, to see if it makes sense with typical bass playing. If not, why burn more power for that extra op amp?

EDIT: Total current draw is about 4mA*, so it's onboard-worthy!
*once I subtracted the ridiculous 3.5mA quiescent of the 78L05 regulator that I will replace with a low quiescent part. Or even better, use a stepdown switcher to bring 9V down to 5.
 
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JTEX said:
I haven't implemented the auto attack/release (the non-linear capacitor in the RMS detector). I will do that next, to see if it makes sense with typical bass playing. If not, why burn more power for that extra op amp?
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I thought that was a clever part of the application note. But, I’ve never built it without it. I’d be interested to hear your thoughts about it in/out of the circuit.
 
JTEX said:
Clever indeed, but I have a hunch that it makes more sense on a full mix than with a single instrument. We'll see.
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I figured it was doing some of the lifting in making the circuit work well with bass, i.e., not getting overwhelmed by lower frequencies and balancing the response across the frequency range.
 
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