Would anyone happen to have a clean schematic for the Endangered Audio Research Gristleizer?

Hey, I'm trying to build a clone of the EAR Gristleizer, and am coming up a bit short. There is s schem on the build guide on instructable, but it's very low res and I can barely make out the component values.

If anyone could point me in the right direction I'd be very appreciative.

Thanks for your help.

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u/chupathingy99 — 5 days ago

Copyright law- can I publish a recording that a now-famous person was involved with?

Chicago, Illinois, USA. So, I'm going to be vague and not name names. I have a recording my father made with his band back in the 70s. The band has long since broken up, but the singer of said band went on to have another project that achieved respectable success. He became a bit of a figurehead in his scene.

Would there be any repercussions if I were to publish this recording? Would the singer have any grounds to take legal action? This work isn't copyrighted. I'm not looking to get any real revenue from the recording. I'm a bit of an amateur archivist, and the singer had briefly mentioned this band in a few interviews, so I thought it would be cool to semi-professionally release this recording so that the few other collectors out there could fill an otherwise unfilled hole in their collections.

What do you guys think?

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u/chupathingy99 — 1 month ago

Problems with hm2 clones: Am I frying the jfet?

I've built three different hm2 clones. Two promethium boards from pedalpcb and the HM2 cult board. All three times, there was a signal for a little bit. Not very chainsaw-y, more like a dialed back classic orange distortion pedal. I made sure to dime everything, so it's not that. But then it just sorta stopped.

I got super weak output on the two pedalpcb boards which use the 2n5457, and just light crackles on the hm2 cult that used a j201. I tried testing the other transistors for shorts, but they appeared fine. Also the hm2cult called for jrc opamps but I think I got scammed on those. I replaced them with 072s but no real change.

Am I zapping my jfets? Should I just socket all the transistors? I'm at a loss here. I want to buy another board and try again, but this is getting ridiculous.

Edit: clarified first section.

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u/chupathingy99 — 2 months ago

Sanity check: does my crude vca look OK?

I built up a VCA from the Moritz Klein FM Drum video. The only thing i did to this was add an inverting buffer to correct the inverting from the first stage.

I tried to follow the schematic to the letter but I'm still learning as I go. Does anything stand out?

Sorry for garbage quality, all my work is done on an airgapped xp machine.

u/chupathingy99 — 3 months ago

I needed to transfer files to my xp machine.

Oh also, the 5v rail pad fell off. I had to scrape away the solder mask and solder directly to the plane.

u/chupathingy99 — 3 months ago