Search found 1820 matches

by fluxmonkey
Mon Feb 22, 2021 8:52 pm
Forum: Music Tech DIY
Topic: Buchalish 111 Ring Mod PCBs
Replies: 192
Views: 20704

Re: Re:

and I'm always expanding the documentation section of the historic buchla (100/200 series) pages , with more schematics and notes. Please let me know if you have other information to share! happy wiggling! Grant Richter has uploaded loads of schematics in the Buchla FB group With Grant's permission...
by fluxmonkey
Wed Feb 17, 2021 10:27 pm
Forum: Music Tech DIY
Topic: Buchalish 111 Ring Mod PCBs
Replies: 192
Views: 20704

Re: Buchalish 111 Ring Mod PCBs

-15 is not used on on this module, so you can leave it unconnected. I only kept the connector for consistency, for folks who have mixed 100/200 series systems.
Delabelle wrote:
Tue Feb 16, 2021 4:19 am
From where do you get the -15v that is not available on the Buchla 100 system?
by fluxmonkey
Wed Feb 03, 2021 5:23 pm
Forum: Music Tech DIY
Topic: What programming platform to build a sequencer?
Replies: 28
Views: 948

Re: What programming platform to build a sequencer?

If I'm reading this correctly, everyone has assumed an architecture where the microprocessor generates the CV outs directly (hence all the DACs etc), which is certainly valid. For an absolute beginner project, though, you might consider an alternative : have the micro just outputting steps, and then...
by fluxmonkey
Fri Jan 08, 2021 9:56 pm
Forum: Music Tech DIY
Topic: Super Psycho LFO vs Psycho LFO
Replies: 4
Views: 207

Re: Super Psycho LFO vs Psycho LFO

i use a couple of psychoLFOs all the time to introduce a little wobble into various modulations... i usually increase the osc. caps to at least 10uf to slow it down. i also have a superpsyco, all the additional options (and panel real estate) dosesn't really add too much musical functionality, at le...
by fluxmonkey
Tue Dec 15, 2020 9:08 pm
Forum: Ciat-Lonbarde
Topic: [AVAILABLE] Fourses Tarp PCBs
Replies: 16
Views: 1076

Re: [AVAILABLE] Fourses Tarp PCBs

nrrrd wrote:
Tue Dec 15, 2020 1:39 pm
The BOM here: http://fluxmonkey.com/pcbDocs/foursesTarp.htm
has a mistake.
The ".1uF" capacitor should be 1uF (105).
dadgummit! :bang: sorry about that, Neil, thanks for letting me know. designation on the PCB is correct, and BOM now corrected.
by fluxmonkey
Thu Dec 10, 2020 10:45 pm
Forum: Music Tech DIY
Topic: cgs Analog Shift Register
Replies: 11
Views: 378

Re: cgs Analog Shift Register

polypropylene. and seriously, the guard tracks are pretty critical, waste of time if you skip 'em. (IMNSHO) properly built, i've been happy w/ mine What I remember about the CGS asr droop discussion was Ken saying emphatically that you have to use the correct caps. Which makes complete sense. Don’t ...
by fluxmonkey
Fri Dec 04, 2020 10:27 pm
Forum: Music Tech DIY
Topic: ginkosynthese grains as DIY soon available!
Replies: 265
Views: 35573

Re:

I found some here on Thonk's website: https://www.thonk.co.uk/shop/ginkosynthese-grains-full-diy-kit/ Would be great to see all these collected in an official Github repository or something. Maybe I'll put one together this weekend. Not sure where other Grains firmwares might reside though https://...
by fluxmonkey
Sat Nov 21, 2020 8:25 pm
Forum: Music Tech DIY
Topic: Buchla Random Voltage Source - Convert to Eurorack?
Replies: 14
Views: 540

Re: Buchla Random Voltage Source - Convert to Eurorack?

yeah, as a voltage divider:
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Screen Shot 2020-11-21 at 8.24.11 PM.png (31.61 KiB) Viewed 215 times
by fluxmonkey
Fri Nov 20, 2020 9:04 pm
Forum: Music Tech DIY
Topic: How to redesign a panel without any source files or information
Replies: 25
Views: 684

Re: How to redesign a panel without any source files or information

i use graph paper, make a rough guess and draw it out, and then literally place the pots/knobs/switches/jacks on the paper to see if everything fits, and adjust where it's too close.
by fluxmonkey
Fri Nov 20, 2020 8:58 pm
Forum: Music Tech DIY
Topic: Buchla Random Voltage Source - Convert to Eurorack?
Replies: 14
Views: 540

Re: Buchla Random Voltage Source - Convert to Eurorack?

i have PCBs available for this: http://fluxmonkey.com/fluxmerch_buchla.htm. it runs fine on 12v without changes. the outputs swing close to the rail, though - i usually build mine with attenuators on the panel for each out, or voltage dividers behind the panel to bring them down to a more reasonable...
by fluxmonkey
Fri Nov 20, 2020 8:53 pm
Forum: Music Software
Topic: Dear Audacity: please die. Horribly.
Replies: 115
Views: 3730

Re: Dear Audacity: please die. Horribly.

i use audacity for sound design, and reaper as a daw, and have never had serious problems. i also use audacity in teaching, and it's great for introductory musique concrete workshops because it's relatively easy to use and free. i have occasionally used it in a pinch as a crude daw for small quick p...
by fluxmonkey
Wed Nov 11, 2020 11:09 pm
Forum: Ciat-Lonbarde
Topic: [AVAILABLE] Fourses Tarp PCBs
Replies: 16
Views: 1076

Re: [AVAILABLE] Fourses Tarp PCBs

@fluxmonkey: that looks really good! Can you tell us which capacitors you used on your range switches, what type of switches you used and how they are wired up, please? I’ve still got to build mine... Other projects and home life getting in the way! 😀 i used 4 SPDT center-off switches. A .001 cap i...
by fluxmonkey
Wed Nov 11, 2020 10:22 pm
Forum: 5U Format Modules
Topic: YuSynth is planning new modules
Replies: 4
Views: 633

Re: YuSynth is planning new modules

"resonant VCF high pass-24 dB / octave"... great to hear, he has consistently solid designs.
by fluxmonkey
Wed Nov 04, 2020 12:57 am
Forum: Ciat-Lonbarde
Topic: [AVAILABLE] Fourses Tarp PCBs
Replies: 16
Views: 1076

Re: [AVAILABLE] Fourses Tarp PCBs

rather pleased with how this one came out... 3-way range switches, 2-input passive mixer to the 386 amp. gonna replace one of the mixer ins w/ a passive tone control (LPF-ish). it's gnarly.
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by fluxmonkey
Tue Oct 27, 2020 9:05 pm
Forum: General Gear
Topic: What new booty did you buy?
Replies: 7797
Views: 656251

Re: What new booty did you buy?

:goo: :goo: :goo:
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by fluxmonkey
Sun Oct 25, 2020 9:49 am
Forum: Music Tech DIY
Topic: [AVAILABLE] TTSH V4 Build Thread
Replies: 1181
Views: 79493

Re: [AVAILABLE] TTSH V4 Build Thread

sduck wrote:
Sat Oct 24, 2020 7:07 pm
Yes, they'll work interchangeably. I have both here, and have put them on top of each other - except for some small differences in hole sizes there's no difference.
excellent, thank you! this had languished in my backlog, partly because of the amount of rework required on the V1pcb...
by fluxmonkey
Sat Oct 24, 2020 3:56 pm
Forum: Music Tech DIY
Topic: Tutorial for moving from DIY PCBs to commercial PCBs for first time
Replies: 14
Views: 625

Re: Tutorial for moving from DIY PCBs to commercial PCBs for first time

I've only ever used EAGLE to the former end - creating artwork for a laser print - and know nothing of the additional steps necessaery for, or expectations of, a PCB fab house. All my designs are two layer thru-hole; not complicated. Also low runs, 5-10. Sounds like you have basic Eagle layout know...
by fluxmonkey
Sat Oct 24, 2020 12:29 pm
Forum: Music Tech DIY
Topic: [AVAILABLE] TTSH V4 Build Thread
Replies: 1181
Views: 79493

Re: [AVAILABLE] TTSH V4 Build Thread

has the panel layout changed since v1? I have a v1 panel, can I use it with the V4 PCB?
by fluxmonkey
Tue Sep 01, 2020 6:32 pm
Forum: Music Tech DIY
Topic: standalone benjolin powersupply
Replies: 26
Views: 526

Re: standalone benjolin powersupply

i build mine to run off a pair of 9v batteries... it does not draw a lot of current, batteries last a couple months unless i forget to turn it off after playing.
by fluxmonkey
Tue Aug 25, 2020 8:48 pm
Forum: Ciat-Lonbarde
Topic: [AVAILABLE] Fourses Tarp PCBs
Replies: 16
Views: 1076

Re: [AVAILABLE] Fourses Tarp PCBs

Awesome, thanks. I was thinking of building this and didn't fancy it on a paper circuit. It looks like you've corrected the mistake on the paper circuit as well. :tu: I've ordered two to make a double tarp, maybe with a shmance instead of the eight knobs. mistake?? :? only Allah is perfect :hail:
by fluxmonkey
Sat Aug 22, 2020 7:53 pm
Forum: Fractional Rack Modules
Topic: [AVAILABLE] Blacet VCO2100 + build thread
Replies: 27
Views: 1535

Re: [AVAILABLE] Blacet VCO2100 + build thread

google "pcb edge mounting hardware" and you may find something that will work for you; i've used these: https://www.adafruit.com/product/1116
by fluxmonkey
Fri Aug 21, 2020 10:04 pm
Forum: Music Tech DIY
Topic: Using FPD for paper drilling template?
Replies: 7
Views: 191

Re: Using FPD for paper drilling template?

I print 2 copies: one glue on w/ rubber cement to use as a drill guide, then i strip that off and use spray adhesive (scotch77) to glue on the final paperface copy. i also often use a self-adhesive laminate sheet, with the top/bottom wrapped around and behind the panel.
by fluxmonkey
Thu Aug 20, 2020 9:49 am
Forum: Ciat-Lonbarde
Topic: [AVAILABLE] Fourses Tarp PCBs
Replies: 16
Views: 1076

[AVAILABLE] Fourses Tarp PCBs

with Peter's kind permission, I have made a few PCBs for the Fourses Tarp paper circuit. foursesTarp_silkscreenNaked.jpg The original paper circuit is here: https://www.ciat-lonbarde.net/paper/fourses.pdf; I've added an (optional) LM386 amplifier to make it more self-contained. More info and BOM on ...
by fluxmonkey
Fri Aug 14, 2020 1:43 pm
Forum: Music Tech DIY
Topic: Buchla 100 clones: 158, 180, 140, 156, 106, etc. DEMOS
Replies: 839
Views: 64535

Re: Re:

I have also been working on a new module idea. Here is a rough sketch. Let me know what you think: I know it's a joke, but I've been thinking of a module that displays random entries ifrom Brian Eno's "oblique strategies". Would be very cool if it was voltage controlled :) I love this idea. It seem...
by fluxmonkey
Fri Jul 31, 2020 4:42 pm
Forum: Oakley Sound Systems
Topic: Help fixing a ADSR/VCA please
Replies: 15
Views: 1091

Re: Help fixing a ADSR/VCA please

This is why I love Oakley. :hail: Tony!

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