Search found 512 matches

by Bodo1967
Fri Oct 23, 2020 9:50 am
Forum: Music Tech DIY
Topic: New Syncussion with MIDI and Silent power - VIDEOS
Replies: 994
Views: 86372

Re: Re:

I wonder if as the thing warms up a cold solder joint that works on start up get progressively worse as it warms up? Imho, yes. I experienced a similar behavior after I had finished it about 2 years and two months (or so) ago. The first time I then used it during a jam session with a friend, one of...
by Bodo1967
Thu Oct 22, 2020 3:24 pm
Forum: Music Tech DIY
Topic: Moog Memorymoog sucessfully cloned
Replies: 191
Views: 8727

Re: Moog Memorymoog sucessfully cloned

Not wanting to be a party pooper, but does Moog Music Inc. approve of their brand name and logo being used? ... just before anyone possibly gets in legal trouble, I mean :hmm: . Apart from that - kudos, kudos and more kudos to you, @Luismarka - what you have done and achieved is simply super awesome...
by Bodo1967
Thu Oct 01, 2020 3:12 am
Forum: Music Tech DIY
Topic: A subharmonic synthesiser and polymetric sequencer with Teensy 4 and audio library
Replies: 25
Views: 1195

Re: A subharmonic synthesiser and polymetric sequencer with Teensy 4 and audio library

I started building mine yesterday, but I may not be able to really work on it until the weekend. I just received the kit half an hour ago, and I'll get the big Mouser packet probably by the end of next week :D. So I'll probably be able to start building it in about one and a half weeks :D. So far t...
by Bodo1967
Wed Sep 23, 2020 6:19 am
Forum: Artist Discussion
Topic: most orgasmic songs
Replies: 17
Views: 272

Re: most orgasmic songs

by Bodo1967
Fri Sep 18, 2020 12:54 pm
Forum: Modular Synth General Discussion
Topic: Please tell me why lin/log response on VCAs is desirable!
Replies: 10
Views: 385

Re: Please tell me why lin/log response on VCAs is desirable!

Does it accept a gate/trigger and response differently to that? You usually wouldn't control it directly with a gate ot trigger but with a modulation source - for instance with an ADSR envelope, which is triggered by a gate signal, or by an LFO. There is an illustration (oscilloscope picture) on th...
by Bodo1967
Tue Sep 15, 2020 9:09 am
Forum: General Gear
Topic: Arturia PolyMatrix / PolyBrute coming?
Replies: 90
Views: 3960

Re: Arturia PolyMatrix / PolyBrute coming?

https://www.sweetwater.com/store/detail ... ynthesizer
PolyBrute-xlarge.jpg
Picture source: The Sweetwater site linked above
by Bodo1967
Tue Sep 15, 2020 2:31 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD

Yeah, you are totally right. This and a lot of other features are planned to the next firmware update. [mantra chant] Clock-in, clock-in, clock-in! [/mantra chant] :mrgreen: Please, go getting one of the stlink v2 gadget Mine is lying beside the OR and waiting for its first job... [mantra chant] Cl...
by Bodo1967
Fri Sep 11, 2020 11:14 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

Instaed of cutting the base, what I do is insert little paper balls between the pot and the knob, so the knob sits upper and not touch the base. Any paper works That wouldn't have helped here since the plastic inner part of the knob (where the knurled part is) then wouldn't even have touched the (s...
by Bodo1967
Tue Sep 08, 2020 3:15 am
Forum: Modular Synth General Discussion
Topic: Filters of the classic synthesizers - an overview
Replies: 12
Views: 541

Re: Filters of the classic synthesizers - an overview

kdjupdal wrote:
Sat Sep 05, 2020 5:51 am
This overview is my understanding so far.
WASP Filter might be worth adding?
by Bodo1967
Mon Sep 07, 2020 6:31 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

I gave mine some nice knobs on the weekend. The picture is a detail from the original Ebay offer into which I drew how I trimmed them: s-l1600.jpg Source for the original picture The plastic part inside in reality was pushed in deeper, and I couldn't pull it out. That meant it was too deep in for th...
by Bodo1967
Fri Sep 04, 2020 7:09 am
Forum: Music Tech DIY
Topic: questions about the Buchla 292 LPG design
Replies: 12
Views: 2632

Re: questions about the Buchla 292 LPG design

Ah, OK, I see. Well, I think I'll just try it and if doesn't work as intended I'll have at least a starting point for troubleshooting.

Thanks anyway!
by Bodo1967
Fri Sep 04, 2020 6:52 am
Forum: Music Tech DIY
Topic: questions about the Buchla 292 LPG design
Replies: 12
Views: 2632

Re: questions about the Buchla 292 LPG design

I think R17 should be 4.7k unless I'm missing something. It's also 100k in the schematic that comes up with the Google link in one of the previous posts :despair: . Anyway, I can hopefully test my first build on the weekend, and just see if it works or not. Also, I personally know someone who built...
by Bodo1967
Fri Sep 04, 2020 6:10 am
Forum: Music Tech DIY
Topic: questions about the Buchla 292 LPG design
Replies: 12
Views: 2632

Re: questions about the Buchla 292 LPG design

Perhaps also check out this document:

http://modular.fonik.de/pdf/low%20pass%20gate.pdf

It shows the switch wiring and includes a resonance mod.

I have translated the PCB layout into KiCad, and my first build of one is now ready for testing *fingers crossed*.
by Bodo1967
Thu Sep 03, 2020 3:17 am
Forum: Modular Synth General Discussion
Topic: Interested in a reprint of Allen Strange's Electronic Music?
Replies: 383
Views: 45348

Re: Re:

Should be before the new year! That is awesome news :hail: :tu: :nana:! I've put a LOT of time into this, and I'm not getting a penny. Not even a free copy. Be sure not to forget the "buy me a coffee" button on the Kickstarter page. I'm sure this will enable you to get your copy plus as much well d...
by Bodo1967
Tue Sep 01, 2020 12:44 pm
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

Any idea on what to troubleshoot next? maybe something else got fried by inverting the polarity of the screen ?? I consider it likely that you have to replace the display. According to Juan the OR won't boot without the display: It needs the screen to boot, tho :tu: I really hope that this is all y...
by Bodo1967
Thu Aug 27, 2020 1:31 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

Yeah, currently it does clock out pulses to synch. There are midi in hardware implemented too. The firmware is not written yet. Should be ready if there are no incidents this fall. Hopefully! My ST-Link v2 thingie arrived this week, so can't wait to make the OR sync to an external clock (DIN sync o...
by Bodo1967
Tue Aug 25, 2020 8:28 am
Forum: Music Tech DIY
Topic: thermally coupling AND matching transistors?
Replies: 15
Views: 429

Re: thermally coupling AND matching transistors?

htor wrote:
Tue Aug 25, 2020 8:19 am
it does not mention matching them. should i do that? is there anything to gain from that in this case?
Nope, they're different types anyway (NPN - PNP).
by Bodo1967
Tue Aug 25, 2020 4:26 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

what's the orientation of C1? Negative "up" (towards the Blue pill)? That's what it looks like in the videos, but it's very blurry. the indicator isn't so clear to me. Yes. or1.png (copyright disclaimer: this is a detail from one of the original pics on Tindie, I only added the green and red arrows...
by Bodo1967
Sat Aug 22, 2020 9:20 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

Bodo1967 wrote:
Sat Aug 22, 2020 5:40 am
And btw, mine is ready for testing now.
Just switched it on for the first time.

Wow. Already lovin' this little machine :mrgreen: :tu: :nana:.
by Bodo1967
Sat Aug 22, 2020 7:59 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

rosch wrote:
Sat Aug 22, 2020 7:01 am
The bluepill, is that the MCU that comes with the board?
Yes.
by Bodo1967
Sat Aug 22, 2020 5:40 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

There are midi in hardware implemented too. The firmware is not written yet. Should be ready if there are no incidents this fall. Hopefully! That would indeed be great :tu: . That would make it so much easier for jamming - and possibly also for track-by-track recording: Sometimes, "120 bpm" vary a ...
by Bodo1967
Thu Aug 20, 2020 9:09 am
Forum: Guitars, Basses, Amps & FX
Topic: Help needed with buying new strings for acoustic guitar
Replies: 5
Views: 153

Re: Help needed with buying new strings for acoustic guitar

oceankebro9 wrote:
Thu Aug 20, 2020 8:54 am
(10, 14, 23w, 30w, 39w, 47w) these were written on the pack of my last set of strings, I am assuming they are the gauge size of the strings.
Yep, that's correct. 10 = 0.01 inches; 23 = 0.023 inches, and so on.

w stands for wound, which means the string core/wire is wound with a thinner wire.
by Bodo1967
Fri Aug 14, 2020 1:39 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

Bodo1967 wrote:
Thu Aug 13, 2020 8:22 am
I hope to get them before the weekend.
Bingo. Received them yesterday, as well as the opto couplers :D.
by Bodo1967
Thu Aug 13, 2020 8:22 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

yan6 wrote:
Thu Aug 13, 2020 8:19 am
Sorry to be dumb, but is there a purchase link for them
I simply bought mine off Ebay. According to the tracking code they passed German customs by now so I hope to get them before the weekend.
by Bodo1967
Thu Aug 13, 2020 8:18 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 164
Views: 7163

Re: OPERA ROTAS, a DIY mutant drum machine

yan6 wrote:
Thu Aug 13, 2020 8:03 am
What are the two blue pcbs at the top of the main board, are they part of the kit or a separate purchase
Those are the 4067 breakout boards. They are not included with the kit (at least not with the 'basic' kit I bought), but they aren't expensive.
I paid less than 3 Euros for two of them.

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