Jonas is active on the FB Video Circuits page (https://www.facebook.com/groups/VIDEOCIRCUITS/), he's very helpful on all things CHA/V

WOW ... had not seen that these were (again) available :goo: :goo: a bargain! Elby have a range of panels and a load more coming out in March. Have a proper look or check the threads here. Panels with separate PCBs as per the old days. https://www.elby-designs.com/contents/en-us/d79_Best_of_CGS_-_BO...

hey, Rex - LINK = https://www.edcorusa.com/xsm_series $15.00 bucks USD each plus shipping. 20hz to 20khz freq response (per their webpage, linked above). https://www.muffwiggler.com/forum/userpix2/9827_passive_ring_mod__ken_stone_type__1_1.jpg what a coincidence! I built one just like that! same han...

I believe there were more than one version of this, but here's the schemo for one of 'em

Speaking of which does anyone remember "Electronics for Music" it was a web site run by a guy that made PCBs for synth stuff. I bought a bunch of PBCs from them. I think it was run by a guy named Tom Gamble? I think this might win: https://yusynth.net/index_en.php?&arg=4 Yeah, Electronics for Music...

I haven't done the yusynth version, but the CGS version behaves similarly... I think it may be inherent in the design. one of my favorite VCFs.

i feel ya, but creating the tutorials from scratch is kind of the educational point...

i use Front Panel Express for my panels. I provide FPD files for all of my modules on my website - you could use those as starting points and edit them for other modules. I believe Julian/The Beast also does custom CNC routed panels - he may be able to match the textured metal of trad buchla panels ...

another hurdle would be the center-tapped pots in critical positions of the VCO and VCF, if I remember correctly

the always awesome Dave Brown has done some work on the 111 (my PCBs), confirmed most of the earlier discussion and suggested some improvements: https://modularsynthesis.com/buchla/111/111drm.htm . Thanks so much, Dave! The 111 is out of the system right now for verification and testing. One questio...

first, the cost of official buchla has always been high, and legacy stuff fetched ransom collectors prices… compared to those, the DIY stuff is a bargain. then, there was considerable work to reverse engineer designs from faulty schematics, and updating designs that relied on unobtainium parts. folk...

15v power, and a power distribution system that actually works, is really what differentiates blacet/frac from euro. i wouldn't mind a physical redesign that allows for shallower frames, but please don't castrate the electronics Blacet always had cool and unusual features and I really hope it is car...

Big shoutout to Mike Peake for pointing out an error on my Buchla RingMod boards... one of the resistors marked 10r should in fact be 10k. I and others have successfully built these with the marked values, but trimming will be easier with the correction. I've updated the build page with errata and p...

:tu: Mr. Grassi awesome :tu: I only wish all jacks had been located on the bottom or top for playability in the case of spaghetti :oops: Have you tried tendrils right angle cables? I could see them being particularly helpful with Mr. Grassi ooh, had not heard of those, hot tip: https://www.tendrils...

thats really cool! if you dont mind me asking. how did you wire the 9volt battery connector to the pcb? originally i just spliced it on to the power ribbon cable it came with. after this picture was taken, i went back and unsoldered the ribbon entirely and soldered directly to the pads, allowed me ...

i'm not a euro guy, but i made an exception for Mssr. Mobenthy, and i have a small rack with one of each, but sadly no room for the Grassi. it occurred to me that, if it's closely related to Mr. Grassi paper circuit it might not need a bipolar PS, and might even run on 9v battery power, which turned...

wow! i would love to see a picture of this! I just finished a build of three of these. I changed the values of several capacitors and resistors on two of them. I made two mixers from a tl074, one as the input mixer, two inputs, and then one as the summing mixer of all 14 outputs, that's 12 outputs f...

It's been a minute, but realized I never posted pics of these builds... so, see below. I also made some updates to the ever-growing Historical Buchla pages , with descriptions, pictures, and links to as much documentation as I can find about Buchla 100 and 200 series modules. If you have info to add...

i thought I had replied previously? but if not, I'm in for a full set. thx!

exactly that. even among those that produce a strong noise signal, there's variation, so it's worth it to buy a bag to sort thru... 2n3904 are $0.02@ at tayda not all diodes/transistors are good noise sources, even from the same batch, you need to select for good noise performance. i often will got ...

not all diodes/transistors are good noise sources, even from the same batch, you need to select for good noise performance. i often will got thru a dozen before i find a good one.

His kits provided me my first opportunity to own a synth, and his modules remain a integral part of my rig and my sound. He will be missed. https://www.muffwiggler.com/forum/userpix2/267_img_2459_2.jpg https://www.muffwiggler.com/forum/userpix2/267_img_2461_2.jpg https://www.muffwiggler.com/forum/us...

A lot of info available direct from PAiA directly: https://www.paia.com/talk/viewforum.php ... da72c9a422. I've restored a couple, but it's been a while....