Search found 536 matches

by Bodo1967
Thu Jan 21, 2021 3:17 am
Forum: Music Tech DIY
Topic: DIY drum suggestions
Replies: 14
Views: 614

Re: DIY drum suggestions

Philthy wrote:
Mon Jan 04, 2021 4:21 pm
Looking for DIY drum recommendations - ideally desktop
[...]
Suggestions please.
DrumKid.
https://mattbradshawdesign.com/projects/drumkid/

It's available as a ready-to-use machine and as a DIY kit.
by Bodo1967
Fri Jan 01, 2021 10:22 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 203
Views: 9973

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

I don't have much height reserve though, since I gave mine an acrylic front cover plate limiting the free space 01IMGP3717.jpg Cutting and drilling that plastic material is definitely not my favorite pastime :roll: , and it will never be. The Opera Rotas just sits in the black wooden stand I made, ...
by Bodo1967
Tue Dec 29, 2020 6:24 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 203
Views: 9973

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

That's what I'm referring to as hardware patching. That part is not hard to do. As I proposed, a small adapter and some hardware patching would be needed to re-assign pins and some of the output circuitry, but I guess it should be manageable using a small protoboard. Ah, OK, thanks! I had assumed t...
by Bodo1967
Mon Dec 28, 2020 9:34 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 203
Views: 9973

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

If I'm not mistaken (I may very well be) it could be feasible to replace the 4n35 with the more commonly used 6n137 optocoupler. This would of course take some hardware patching, but it would not have to be a completely separate board (more of an adapter), right? Sounds tempting, but I don't think ...
by Bodo1967
Tue Dec 22, 2020 9:15 am
Forum: Music Tech DIY
Topic: Why 1000pF as opposed to 1nF?
Replies: 15
Views: 398

Re: Why 1000pF as opposed to 1nF?

The one I really don't understand is using mF for "microfarad"... I don't think I've ever seen that in an actual schematic - and it would simply be wrong (and yes, I am aware that you are aware of that ;)). mF is milliFarad, not microFarad. Electrolytic caps in the mF range do exist, although they ...
by Bodo1967
Tue Dec 15, 2020 9:29 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 203
Views: 9973

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

<quote>Ontop of stopping the sequencer, another nice to have would be a way to clear the pattern</quote> This and mute/unmute channels are quite asked and will be in the next code iteration. The analog clock in seems that will work too, fingers crossed That. Sounds. Awesome! :tu: :tu: :tu: The prob...
by Bodo1967
Tue Dec 15, 2020 2:36 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 203
Views: 9973

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

And - ability to sync to an external clock provided - a mute function (as, for instance, in the Beatstep Pro) so it stays synced while not putting out sound.
by Bodo1967
Fri Dec 11, 2020 8:35 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 203
Views: 9973

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

SphericalSound wrote:
Fri Dec 11, 2020 8:26 am
When I have the new MIDI firmware I will try to implement "analog clock in" in the current MIDI IN port. I guess should be doable without hacking the hardware side
That would be awesome! And a big thank you for your efforts also from my side!
by Bodo1967
Fri Dec 11, 2020 3:18 am
Forum: Music Tech DIY
Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
Replies: 203
Views: 9973

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

In the meantime, if somebody has any idea: maybe bypassing the optocoupler and conecting the midi cable directly to the microcontroller doing some 5v>3.3v voltage division? or something like? Perhaps something like bypassing the optocoupler and using a small external interface box based on an 6N137...
by Bodo1967
Wed Dec 09, 2020 4:05 am
Forum: Music Tech DIY
Topic: Looking for projects working with PT2399(Eurorack; pedal)
Replies: 11
Views: 443

Re: Looking for projects working with PT2399(Eurorack; pedal)

well.. this is what I am looking for.. anyone bought from them and shipped to EU? Well yes, I did :D. Somewhen in spring. I have no much experience with custom fees; I only know last year they charged me 30 euro for a small package coming from Canada to Italy! I'm not sure in how far this is compar...
by Bodo1967
Fri Dec 04, 2020 4:40 am
Forum: Modular Synth General Discussion
Topic: Noob question - tremolo
Replies: 4
Views: 205

Re: Noob question - tremolo

If I want to use an LFO (through an attenuator/EG) to create a pitch tremolo, how would I do it? Do I need to combine the pitch CV and the tremolo CV in a mixer, Before going into 1v/oct? That's one way, yes. Or am I missing some other obvious method? Many oscillators have several CV inputs (typica...
by Bodo1967
Thu Dec 03, 2020 3:44 am
Forum: Artist Discussion
Topic: Favorite Krautrock-er solo albums?
Replies: 54
Views: 3080

Re: Favorite Krautrock-er solo albums?

I'd like to add two duet albums -

Harald Grosskopf & Axel Manrico Heilhecker - Are you psyched?
Mani Neumeier & Zeus B. Held - The secret lives

Both are recent, as in: they were released in the second half of 2020.

I love both of them.
(Both are available through Bandcamp, btw.)
by Bodo1967
Wed Dec 02, 2020 4:48 am
Forum: General Gear
Topic: What is this gear?
Replies: 4
Views: 249

Re: What is this gear?

Kodamo EssenceFM

Edit - tron23 beat me to it by a few seconds :lol:
by Bodo1967
Wed Dec 02, 2020 2:52 am
Forum: Music Tech DIY
Topic: Looking for projects working with PT2399(Eurorack; pedal)
Replies: 11
Views: 443

Re: Looking for projects working with PT2399(Eurorack; pedal)

They're not in Europe, but PedalPCB (pedalpcb.com) has some nice PT2399 based delays.

I built four (!) of them earlier this year (Spirit Box; Dark Rift; Magnetron; Seabed), and they all sound great and different.
by Bodo1967
Fri Nov 27, 2020 5:03 am
Forum: Music Tech DIY
Topic: Gate randomizer circuit?
Replies: 12
Views: 241

Re: Gate randomizer circuit?

Wow, so many cool ideas! I really appreciate each and every contribution to this thread, thanks :tu:! Especially @kdjupdal: Yeah, I had briefly thought about noise into s&h as well. But didn't explore this further (thus not getting to the comparator part ;)) when I decided to order the MI Branches P...
by Bodo1967
Fri Nov 27, 2020 4:14 am
Forum: Music Tech DIY
Topic: Populating and soldering pcbs
Replies: 11
Views: 627

Re: Populating and soldering pcbs

I'm not sure two small IC sockets will work the same as a large one. They have a small edge around them. Using two small ones could result in the edge obstructing full insertion of the IC. I would check that first. From personal experience (yes, I actually did do that once or twice - was out of DIL...
by Bodo1967
Thu Nov 26, 2020 3:14 pm
Forum: Music Tech DIY
Topic: Gate randomizer circuit?
Replies: 12
Views: 241

Re: Gate randomizer circuit?

the bad producer wrote:
Thu Nov 26, 2020 2:36 pm
Also the Yusynth Random Gates is fun!
Thanks, that looks interesting, too :tu: . At first I thought it's probably similar to the MFOS one (which I already have as part of the Noise Cornucopia module), but the latter is truly random and doesn't have a clock in.
by Bodo1967
Thu Nov 26, 2020 2:30 pm
Forum: Music Tech DIY
Topic: Gate randomizer circuit?
Replies: 12
Views: 241

Re: Gate randomizer circuit?

there are a few ways this could be done with logic if you want. if the incoming gates clocked a shift register noise source, and then the output of the shift register was AND'd with the input, youd get a gate output with 50% probability. otherwise you could go with a clock generator with variable p...
by Bodo1967
Thu Nov 26, 2020 5:09 am
Forum: Music Tech DIY
Topic: Gate randomizer circuit?
Replies: 12
Views: 241

Re: Gate randomizer circuit?

I guess its done digitally I was thinking "perhaps something with logic gates", but that didn't get me too far (yet?)... I guess its done digitally, but maybe have a look at (half a) Mutables Branches for some ideas...? Thanks, I'll have a look at that! Edit: Yep, that looks good indeed! And now I ...
by Bodo1967
Thu Nov 26, 2020 4:48 am
Forum: Music Tech DIY
Topic: Gate randomizer circuit?
Replies: 12
Views: 241

Gate randomizer circuit?

Hi, I'm looking for a gate randomizer circuit. I don't mean 'random gates' here, as for instance included in the MFOS Noise Cornucopia, but rather a circuit that accepts a gate signal and randomly decides if it may pass or will be muted, preferably even with a "probability pot". Something like this:...
by Bodo1967
Wed Nov 25, 2020 8:27 am
Forum: Music Tech DIY
Topic: Why is it fun to BUILD modular synthesizers?
Replies: 25
Views: 694

Re: Why is it fun to BUILD modular synthesizers?

Why is that? You learn a lot, the "I have built this myself!" feeling when it works is great, you have your own unique instrument that no one else has. I also built several guitars, btw ;). DIY isn't necessarily cheaper than buying a complete instrument (have a look at my signature line below... 8-...
by Bodo1967
Mon Nov 23, 2020 2:52 am
Forum: General Gear
Topic: Behringer Swing
Replies: 133
Views: 8104

Re: Behringer Beystep!

revtor wrote:
Sun Nov 22, 2020 3:31 pm
Maybe they licensed it from arturia...
I know from a 100 % reliable first hand source (German Arturia distributor) that this is not the case.
by Bodo1967
Wed Nov 04, 2020 5:12 am
Forum: Music Tech DIY
Topic: DIY build, missing items!
Replies: 5
Views: 189

Re: DIY build, missing items!

There's lots of sellers on platforms such as Ebay. According to my personal experience, some are particularly good for pots, others for ICs, etc.
As woodster wrote above: It becomes second nature soon enough!
by Bodo1967
Wed Oct 28, 2020 9:57 am
Forum: Music Tech DIY
Topic: Can i put capacitors in parallel?
Replies: 17
Views: 385

Re: Can i put capacitors in parallel?

helix wrote:
Wed Oct 28, 2020 9:51 am
instead of replacing the ones i put in, can i ADD another of the same value capacitor to it by just soldering it into the holes as well as the one that's already there.
Sure. Their capacities will simply add. So if you have 1 µF and want 2 µF, put in another 1 µF in parallel.
by Bodo1967
Fri Oct 23, 2020 9:50 am
Forum: Music Tech DIY
Topic: New Syncussion with MIDI and Silent power - VIDEOS
Replies: 1010
Views: 92318

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...

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