https://electro-music.com/forum/ https://electro-music.com/forum/viewtopic.php?p=455748#455748 "on none on" and "on on" are the same thing. "on none on" is used to distinguish between "on off on" which have 3 positions. with "none" there are only 2 positions, same as "on on". elmegil Sun, 11 Aug 2024 07:47:37 -0700 https://electro-music.com/forum/viewtopic.php?p=455666#455666 Thank you for that great answer. I did source my own parts, and the capacitor C4 is a film one. I will try the test on IC2 pin1 in a week when I get back from vacations. I'll tell you what voltages I see. octavebrand Sun, 14 Jul 2024 11:34:33 -0700 https://electro-music.com/forum/viewtopic.php?p=455311#455311 The best percussion synth ever. Thanks a lot Mister Henry.
I will always love you :) did_poutrator Tue, 23 Apr 2024 00:10:13 -0700 https://electro-music.com/forum/viewtopic.php?p=454620#454620 https://youtu.be/QePYk7DSQ78

-100% of all sounds generated by one Monotribe.

-It gets it filter articulation from my DIYS (design-it-yourself) triple channel
Sample and Hold (with loop function). (only 1 channel used)
(I did a simple mod to al ... zaphod betamax Fri, 03 Nov 2023 20:34:23 -0700 https://electro-music.com/forum/viewtopic.php?p=452101#452101 I built a T.H. VCF-1 and really like it. I have a question about self resonance. The filter does all the things I expected including pretty nice V/O tacking and it pings really nicely.

But, if the resonance is turned up enough for the filter to os ... gimble88 Wed, 29 Jun 2022 08:34:10 -0700 https://electro-music.com/forum/viewtopic.php?p=451452#451452 Hello all,

I used the UV film caper to make my PCB from the artwork on Scott's site and did a little bit of Photoshopping to use the least possible amount of Ferric Cloride and leave as much copper on the board as I could.


This was my first t ... JimRead Tue, 15 Mar 2022 02:52:15 -0700 https://electro-music.com/forum/viewtopic.php?p=451438#451438 In playing around with this some more, I realized the mix between the shell and noise was way off so I replaced the feedback resistor in the opamp before the noise volume pot for a 15k, and replaced the 10k resistor in the voltage divider after the sh ... fallenmouse Sun, 13 Mar 2022 06:59:49 -0700 https://electro-music.com/forum/viewtopic.php?p=451426#451426 Every link in this thread is dead or 404, or is it me?

Hello Grumble,

Twas all dun in the dimly lit and distant past.

By doing the above I am hoping to resurrect the VCO. I suspect there are reasons why it and others have fallen by the ways ... JimRead Fri, 11 Mar 2022 08:07:14 -0700 https://electro-music.com/forum/viewtopic.php?p=451417#451417 Hello Thomas, Hello Scott, Hello Ryk, Hello Robert and Hello all,

I found the single sided PCB layout and looking through the thread the feedback modification;


I also altered the transistor layouts so they meet face to face


The PDF layo ... JimRead Thu, 10 Mar 2022 09:07:18 -0700 https://electro-music.com/forum/viewtopic.php?p=451350#451350 Turned out, I had the 20k feedback resistor going between + and the _input_ of the buffer instead of the output. Pretty surprised it was working at all O_o fallenmouse Sun, 27 Feb 2022 17:08:50 -0700 https://electro-music.com/forum/viewtopic.php?p=451222#451222 Hello,

I really like this build fair play to you for doing it, I use 12v so it would be a boon to me.
I wondered if I made two of them is there any way to synchronise them?

Cheers - Jim JimRead Sun, 06 Feb 2022 10:24:16 -0700 https://electro-music.com/forum/viewtopic.php?p=450753#450753 +1 marwatt Thu, 09 Dec 2021 03:58:42 -0700 https://electro-music.com/forum/viewtopic.php?p=450615#450615 IMO a "tempco" is usually a luxury and not a necessity unless you are a stickler for rules. Some of my poorly made VCO(s) which all use basic 0.1% resistors in place of "tempcos" are functionally solid with very few pitch drifts in different ambient t ... Gingoism Wed, 24 Nov 2021 00:06:44 -0700 https://electro-music.com/forum/viewtopic.php?p=450279#450279 Below are some of the ideas (two, actually...) that I deliberated over for quite some time. Instead of discarding them into the black hole of discarded projects, I thought I share them with you, and invite you to discuss.


The 1uH ("one micro Hen ... sompost Tue, 05 Oct 2021 02:27:46 -0700 https://electro-music.com/forum/viewtopic.php?p=450074#450074 Thomas has kindly given his blessing to an excellent both 15v/12v design of his MPS by Haraldswerk that has a components board so no panel wiring. Quinie over on Muff's has ordered a set of boards and panels and still has a few spare he is asking only ... Ayab Sat, 11 Sep 2021 05:15:43 -0700 https://electro-music.com/forum/viewtopic.php?p=448273#448273 A bit late answer maybe but...

LM13700 does not seem outrageously expensive here https://uk.rs-online.com/web/p/op-amps/5339656/ rst Fri, 26 Feb 2021 09:13:43 -0700 https://electro-music.com/forum/viewtopic.php?p=447645#447645 ok think i might have sussed out the culprit(s). in the older circuits i used a opa2134 for the integrator so i swapped the tl072 in my breadboard circuit and problem solved. no limited range or degradation of the core! so i replaced all my other circ ... Gingoism Thu, 31 Dec 2020 02:57:13 -0700 https://electro-music.com/forum/viewtopic.php?p=447389#447389 what happened to this design ?
will there be some ?

Unfortunately, there was not enough interest in it. LOL, boy talk about a late reply !! State Machine Tue, 08 Dec 2020 02:26:48 -0700 https://electro-music.com/forum/viewtopic.php?p=447185#447185 The ota you are using, 3080 or 13700?

It's a 3080, but note sure if it is fake or not. I will check...

Hi all...
regarding fake/not fake CA3080... how to test them on breadbord?
thank you! marwatt Mon, 16 Nov 2020 10:26:55 -0700 https://electro-music.com/forum/viewtopic.php?p=445382#445382 Any chance someone could repost this PDF? I would also be happy to send a donation to Thomas Paypal if that's the way to get the PDF.

That link still works. You literally have to click it and wait for it to time out about 50-60 times. At least th ... JCHaywire Thu, 25 Jun 2020 18:49:03 -0700