Search found 26 matches

by letness
Wed Feb 06, 2019 7:37 pm
Forum: Music Tech DIY
Topic: [Ordering Closed] Gene Model I Drum Synth
Replies: 85
Views: 7733

Looks and sounds fantastic. Following with much interest.
by letness
Fri Apr 06, 2018 10:18 pm
Forum: Music Tech DIY
Topic: Introducing myself and “Gene” the drum machine
Replies: 71
Views: 7054

Congrats on the (human) baby! Just listened to your demo again and loved it (again). Looking forward to building a Gene and to hearing your record. Great news all around!
by letness
Mon Jan 22, 2018 11:54 pm
Forum: Music Tech DIY
Topic: DIY Trade Thread [ Parts, PCBs, Panels ]
Replies: 795
Views: 133512

[edit]meant to PM--failed.
by letness
Thu Jan 18, 2018 11:48 pm
Forum: Music Tech DIY
Topic: SCI Pro One Clone - UPDATE 12/3/18
Replies: 88
Views: 7250

Also interested, despite my current backlog. Very much looking forward to demos.
by letness
Tue Jul 25, 2017 10:24 pm
Forum: Music Tech DIY
Topic: Triple Chorus Transformer/Build Thread
Replies: 15
Views: 832

Also, here's my working mouser BOM, which should contain everything needed for the board itself (no pots, switches, connectors, etc.). If anyone spots any errors, or has suggestions for swapping components, I'd be happy to update it.
by letness
Tue Jul 25, 2017 6:21 pm
Forum: Music Tech DIY
Topic: Triple Chorus Transformer/Build Thread
Replies: 15
Views: 832

Those panels look great! Thanks for sharing them. Excuse my total ignorance of power supplies, but does half-rectified refer to the type of transformer in the wall wart/plug pack, or the diodes (and other components?) on the board? I've got here a Triad 18V 0.66A wart (WSU180-0660) and a Yamaha PA-2...
by letness
Sat Jul 22, 2017 11:13 pm
Forum: Music Tech DIY
Topic: Triple Chorus Transformer/Build Thread
Replies: 15
Views: 832

Also happy to share my build as it progresses--likely in stomp-box form, I'm thinking (would love to see your panels tho, ekoch). Planning to get started in a few weeks, but might have a BOM sooner, if that's at all helpful.
by letness
Wed Jul 19, 2017 8:06 pm
Forum: Music Tech DIY
Topic: Triple Chorus Transformer/Build Thread
Replies: 15
Views: 832

Thanks for the insight re: wall warts v. internal transformers--for some reason, I hadn't connected the dots between modular PSUs and self-contained projects. Having zero experience with mains power, I think I'll stick to an AC wart for now (which, if I'm understanding the power options correctly, s...
by letness
Tue Jul 18, 2017 10:41 pm
Forum: Music Tech DIY
Topic: Triple Chorus Transformer/Build Thread
Replies: 15
Views: 832

I don't have an answer, I'm afraid, but a related question. I'm gathering parts for my own Triple Chorus build, and I'm wondering whether there is any advantage to using an onboard transformer instead of a wall wart. Do you anticipate better sonic performance? Is it a switching v. linear issue for t...
by letness
Thu Jun 22, 2017 9:51 pm
Forum: Oakley Sound Systems
Topic: TM3030 VCO Problem
Replies: 22
Views: 1565

Problem fixed Tony. Many thanks. I'm now working on getting that hollow sound from the square wave--it sounds very good at the moment, but not quite up to the demos on your page (in particular, the third unprocessed demo). Again, I really appreciate the help.
by letness
Fri Jun 02, 2017 10:11 pm
Forum: Oakley Sound Systems
Topic: TM3030 VCO Problem
Replies: 22
Views: 1565

Great! Makes perfect sense that this happened after I installed the pcb in an enclosure (which involved some epoxy and maybe some bending of the board--we'll see). Will do as you suggest. Thanks again Tony--really appreciate the help.
by letness
Wed May 31, 2017 9:10 pm
Forum: Oakley Sound Systems
Topic: TM3030 VCO Problem
Replies: 22
Views: 1565

Hate to say it, but I've got another issue. When I power up the TM3030, the pitch is stable. After a few minutes, the pitch starts to wobble--it sounds, for lack of a better phrase, like the vco is seasick. Then the pitch jumps up several octaves and is stable again--rock-solid stable. But the range...
by letness
Fri May 05, 2017 11:19 pm
Forum: Oakley Sound Systems
Topic: TM3030 VCO Problem
Replies: 22
Views: 1565

Did as you suggested and tested D2, R6, R9, and pin 7 of U7--all good. Then replaced the 182Ls and the 212L and it came to life. I suspect the 212 was the problem, but as I replaced all three at the same time, I can't be sure.

In any event, my TM3030 sounds fantastic! Thanks so much for your help!
by letness
Mon May 01, 2017 7:35 pm
Forum: Oakley Sound Systems
Topic: TM3030 VCO Problem
Replies: 22
Views: 1565

Thank you for the guidance Tony. I'll try all of your suggestions and post the results once I get out from behind a pile of work. Again, really appreciate the help.
by letness
Mon Apr 24, 2017 7:43 pm
Forum: Oakley Sound Systems
Topic: TM3030 VCO Problem
Replies: 22
Views: 1565

Okay, I've got the correct voltages out of pins 2 and 12-14 of U6, but I don't see anything of note on the scope. Is there something else I should check? Thanks again.
by letness
Thu Apr 20, 2017 6:09 pm
Forum: Oakley Sound Systems
Topic: TM3030 VCO Problem
Replies: 22
Views: 1565

Thanks for the speedy reply, Tony. On U6, I get the following: Pin 2: 5.33V Pin 12: 0V Pin 13: 0V Pin 14: 0V I do have a cheap digital scope, but I'm not sure what to probe. I've also attached a photo, just in case I've overlooked something obvious. Thanks again! https://www.muffwiggler.com/forum/us...
by letness
Wed Apr 19, 2017 9:32 pm
Forum: Oakley Sound Systems
Topic: TM3030 VCO Problem
Replies: 22
Views: 1565

TM3030 VCO Problem

After many months, I'm finally getting around to building my TM3030. The MIDI works, but I'm only getting slight clicks sound-wise (so the VCA is working, too, I guess). After reading up on similar issues here on Muffs, I tested the waveform switch, and it seems to be working, and reflowed everythin...
by letness
Thu Mar 30, 2017 5:38 pm
Forum: Music Tech DIY
Topic: Introducing myself and “Gene” the drum machine
Replies: 71
Views: 7054

Sounds fantastic, and I love the card idea. Definitely interested in pcbs/panel.
by letness
Wed Sep 14, 2016 12:40 pm
Forum: Music Tech DIY
Topic: Who wants a new run of Oakley TM3030 PCBs? (303 clone)
Replies: 21
Views: 861

Please mark me down for one. Thanks, Tony!
by letness
Tue Jul 05, 2016 2:09 pm
Forum: Music Tech DIY
Topic: [IN STOCK] Manual Voltage Processor - 16hp of Euro utility
Replies: 354
Views: 40688

DJMaytag wrote:12mm Alpha's with solder lugs might work.
Those look like a good solution--thanks for pointing them out!
by letness
Fri Jul 01, 2016 5:01 pm
Forum: Music Tech DIY
Topic: [IN STOCK] Manual Voltage Processor - 16hp of Euro utility
Replies: 354
Views: 40688

I think that the 16mm pots would work fine for a bracket (and likely be a bit easier to solder). I was just trying to mount the board parallel to the panel with some standoffs (fixed to the panel with epoxy) and couldn't find a place for them with the bigger pots. Not sure if my plan will work yet, ...
by letness
Fri Jul 01, 2016 9:53 am
Forum: Music Tech DIY
Topic: [IN STOCK] Manual Voltage Processor - 16hp of Euro utility
Replies: 354
Views: 40688

Thanks for confirming, negativespace! And for the offer of the control boards, especially at cost--very generous of you. Can't speak for anyone else, but I'm happy doing the wiring without the control board (weirdly, I enjoy wiring). Again, really appreciate the customer support!
by letness
Fri Jul 01, 2016 9:15 am
Forum: Music Tech DIY
Topic: [IN STOCK] Manual Voltage Processor - 16hp of Euro utility
Replies: 354
Views: 40688

I'm in the same boat, DJMaytag. SynthCube was kind enough to send me the pic below, which gives the pinout for the control pcb--so you have to imagine how it would connect to the primary pcb. (I hope it's okay that I uploaded this pic--if not, let me know.) https://www.muffwiggler.com/forum/userpix2...
by letness
Wed Jun 29, 2016 7:17 am
Forum: Music Tech DIY
Topic: [DISCONTINUED THRU HOLE]-[BUILD] Neutron Orgone Accumulator.
Replies: 1566
Views: 93489

Thanks, Neutron7, that was exactly the problem: I didn't understand X mode until I got the module up and running properly. It's working beautifully now and sounds fantastic. Thanks again for a great addition to my rig!

And I second diablojoy: those panels look sweet.
by letness
Thu Jun 23, 2016 10:16 am
Forum: Music Tech DIY
Topic: [DISCONTINUED THRU HOLE]-[BUILD] Neutron Orgone Accumulator.
Replies: 1566
Views: 93489

Just finished my OA--fun build and a great sounding module! I do have a couple of questions tho: 1) Wave A sounds a bit quieter than waves B and C--is this normal? 2) Wave C is tuned slightly lower than waves A and B, which seem to be identically tuned--again, normal? If these bahaviours aren't norm...

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