Search found 2313 matches

by Jarno
Sun Jul 05, 2020 4:05 pm
Forum: Music Tech DIY
Topic: extreme Moog MG-1 Realistic Concertmate expansion/mod kits coming soon - and a request for opinions!
Replies: 15
Views: 843

Re: extreme Moog MG-1 Realistic Concertmate expansion/mod kits coming soon - and a request for opinions!

Nice work!
But, we don't exactly trip over those synths over here in europe, how is this in the US? Are these synths easily available?
by Jarno
Wed Jul 01, 2020 1:39 pm
Forum: General Gear
Topic: What about Zoom R16 as a mixer and audio interface?
Replies: 15
Views: 441

Re: What about Zoom R16 as a mixer and audio interface?

Love mine to bits, recording dawless, allows me to focus on my modular and not using mouse. I have used it as an interface and control surface for reaper, but not often. Really wish it could record midi or sync on a separate track (often record a click a la moroder) No issues with mine, but yes inpu...
by Jarno
Tue Jun 23, 2020 7:03 am
Forum: Music Tech DIY
Topic: LARGE MFOS System
Replies: 25
Views: 879

Re: LARGE MFOS System

I would chuck in a few Meanwell supplies, hefty ones for +12v and -12v, smaller one if you have stuff that runs on nine volts. Maybe make sure that all modules have good supply filtering (because the SMPS supplies are a bit noisier than linear ones). But yeah, those Meanwell supplies are really low ...
by Jarno
Mon Jun 22, 2020 3:32 pm
Forum: Music Tech DIY
Topic: 1-a-day synth wood work project
Replies: 20
Views: 846

Re: 1-a-day synth wood work project

That is a very nice plank-o-wood. Gotta say though 1" thick is quite generous for a eurorack case, or is this going to be something else? You might be able to resaw it to 11mm or so, and then thickness it again, maybe that's going to be a bit thin, come to think of it.Or one thicker piece and one th...
by Jarno
Mon Mar 30, 2020 3:58 am
Forum: Music Tech DIY
Topic: Circuit Kludging, Ninja Level
Replies: 14
Views: 605

Re: Circuit Kludging, Ninja Level

That's not a kludge, that's a modular filter unit :)

(if you can't fix it, feature it)
by Jarno
Sat Mar 28, 2020 3:24 pm
Forum: Music Tech DIY
Topic: The 2020 Show Us Your DIY Builds Thread!
Replies: 307
Views: 23641

Re: The 2020 Show Us Your DIY Builds Thread!

Oh, I figured that's what you built, which circuit or pcb did you use?
by Jarno
Sat Mar 28, 2020 1:43 pm
Forum: Music Tech DIY
Topic: The 2020 Show Us Your DIY Builds Thread!
Replies: 307
Views: 23641

Re: The 2020 Show Us Your DIY Builds Thread!

forestcaver wrote:
Fri Mar 20, 2020 10:40 am
011-modular_ajh_asr.jpg012-modular_ajh_asr.jpg013-modular_ajh_vca1.jpg014-modular_ajh_vca1.jpg015-modular_ajh_phones.jpg016-modular_ajh_phones.jpg
I've been ogling those Kassutronics ASR envelope generators, what do you think of them?
by Jarno
Sun Mar 08, 2020 4:05 pm
Forum: Music Tech DIY
Topic: eurorack level distortion circuit?
Replies: 6
Views: 513

Re: eurorack level distortion circuit?

I made a board which has both a Woolly Mammoth-ish fuzz using PNP germanium, and opamp based distortion (tube screamer or MXR dist+). The fuzz end is powered a single power rail, so has similar headroom as a pedal, I used both eurorack power rails for the opamp based side (as in the ronnberg schemat...
by Jarno
Fri Mar 06, 2020 1:34 pm
Forum: Music Tech DIY
Topic: Countryman 968 6 way vactrol
Replies: 7
Views: 430

Re: Countryman 968 6 way vactrol

Edit: past tense probably, since, because of RoHS regulations, LDR's are hardly made anymore. They are still made and relatively easy to obtain: https://www.advancedphotonix.com/apx-products RoHS doesn't apply to everything, but has reduced the market. I wonder how that works, because RoHS includes...
by Jarno
Mon Mar 02, 2020 1:51 pm
Forum: Music Tech DIY
Topic: Countryman 968 6 way vactrol
Replies: 7
Views: 430

Re: Countryman 968 6 way vactrol

What readily available three unit vactrols are you speaking off? +1 :) But maybe get a great big bag of LDR's and match them? For a phaser, they do not need to be super fast (I get the idea that the VTL5C3 ones, which are decently quick are hard to come by as separate items, probably because of the...
by Jarno
Sat Feb 08, 2020 5:09 pm
Forum: Music Tech DIY
Topic: In CV: an Arduino-powered virtual ensemble that plays Terry Riley's "In C" on CV/gate outputs
Replies: 11
Views: 737

Re: In CV: an Arduino-powered virtual ensemble that plays Terry Riley's "In C" on CV/gate outputs

That is very interesting!
Are those little boards with the dacs a standard part (Aliexpress?)?
by Jarno
Fri Jan 31, 2020 5:17 am
Forum: Music Tech DIY
Topic: [build thread] 2020 3340 VCO
Replies: 46
Views: 2671

Re: [build thread] 2020 3340 VCO

Only now did I dig into this thread, but that looks pretty good! I think you need to move the trimpots a bit back on the board or they'll interfere with the frontpanel (if you make holes in the panel you can still do adjustments without the holes needing to be very accurately placed). Any reason for...
by Jarno
Thu Jan 30, 2020 12:08 pm
Forum: Music Tech DIY
Topic: Music Thing Modular – Workshop Notebook
Replies: 6
Views: 777

Re: Music Thing Modular – Workshop Notebook

Never heard of them, but they look nice. There's someone on Etsy selling them, sans plastic tab. I think you can get stick on tabs from Leuchtturm (also really nice notebooks, not crazy about their penholders, too flimsy). In the meantime, I have received my Music Thing notebook and am happy to repo...
by Jarno
Tue Jan 21, 2020 6:41 am
Forum: Music Tech DIY
Topic: SSM2044 4-Pole Filter project
Replies: 2
Views: 331

Re: SSM2044 4-Pole Filter project

The 2044 is a really nice vcf, and sine osc when pushed into oscillation. Good find!
by Jarno
Mon Jan 20, 2020 4:52 pm
Forum: Music Tech DIY
Topic: Music Thing Modular – Workshop Notebook
Replies: 6
Views: 777

Re: Music Thing Modular – Workshop Notebook

Saw it too, ordered right away, definitely got a weakness for notebooks (and fountainpens, these things go together, usually).
by Jarno
Thu Dec 12, 2019 2:27 am
Forum: Music Tech DIY
Topic: Pittsburgh Modular Schematics!
Replies: 14
Views: 1127

I think someone mentioned resistors, or wire bridges, even cheaper.
I usually use 12 ohm resistors, and boxed headers for power.
by Jarno
Wed Dec 11, 2019 9:50 am
Forum: Music Tech DIY
Topic: Suggestions for relatively easy 1v/oct vco for beginners
Replies: 12
Views: 1094

there's the Electrosmith 3340 VCO module, all the hard parts are assembled.
by Jarno
Wed Dec 11, 2019 6:27 am
Forum: Music Tech DIY
Topic: thinking about tiling my closet for reverb
Replies: 31
Views: 1532

That's an interesting transducer, I knew Barcus Berry from their double bass pickups, but did not know this microphone.
by Jarno
Tue Dec 10, 2019 7:14 am
Forum: Music Tech DIY
Topic: thinking about tiling my closet for reverb
Replies: 31
Views: 1532

WRT to driving the plate reverb, I bought these a while ago, still haven't tried them out: Vidsonix Ghost on eBay Apparently they work really well for a plate reverb. You will need a sturdy frame though, just hanging a piece of sheet steel is not enough, it will need some tension. I don't think I ha...
by Jarno
Fri Dec 06, 2019 9:53 am
Forum: Music Tech DIY
Topic: thinking about tiling my closet for reverb
Replies: 31
Views: 1532

+1
by Jarno
Mon Nov 25, 2019 3:52 pm
Forum: Music Tech DIY
Topic: Source code for Jan Ostman dspsynth ICs?
Replies: 7
Views: 1273

I at least have the one for CZ-1 somewhere, if you can't find it on wayback.
Since I have a PCB design for the CZ-1 and given the trainwreck that is Jan Ostman, I was very happy when he posted those files.
by Jarno
Thu Nov 21, 2019 5:09 am
Forum: Music Tech DIY
Topic: !!The Pseudo 0.5 258J Build/Mod Thread!!
Replies: 1704
Views: 166906

Still have four of these boards of the very first issue, all soldered. Really should overcome my loathing for wiring.....
by Jarno
Thu Nov 21, 2019 5:06 am
Forum: Music Tech DIY
Topic: Vacuum forming panels
Replies: 6
Views: 1058

+1
You could use it to form some ribs to add stiffness to an otherwise floppy panel, but this reduces the available area to place controls and connections. Also, not sure if it would look good (thinking of the 3d printed panels that Jan Ostman did).
by Jarno
Thu Sep 26, 2019 9:20 am
Forum: Music Tech DIY
Topic: Roland System 700 DIY VCO
Replies: 61
Views: 19837

2sc945 and 2sa733 are pretty generic parts, you should be able to find them on eBay as per Rob's answer, in some Roland 808-909 projects, you see them replaced with european BC transistors. 2SK30A-GR is a different kettle of fish, it is a JFET with a specific Idss range, you might still try eBay tho...
by Jarno
Mon Sep 23, 2019 1:34 pm
Forum: Music Tech DIY
Topic: Why are vintage germanium transistors so big?
Replies: 6
Views: 682

Given that not 10 years earlier, the alternative was tubes/ valves, these were considered pretty tiny at the time :D

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