# DIY STUFF **URL:** https://lookmumnocomputer.discourse.group/c/diy-stuff/7.md [Latest](https://lookmumnocomputer.discourse.group/latest.md) · [Categories](https://lookmumnocomputer.discourse.group/categories.md) --- ## [Cheap Component Search](https://lookmumnocomputer.discourse.group/t/cheap-component-search/30)
**Author:** [@lookmumnocomputer](https://lookmumnocomputer.discourse.group/u/lookmumnocomputer)\ **Replies:** 376\ **Last updated:** [October 16, 2026, 9:02pm UTC](https://lookmumnocomputer.discourse.group/t/cheap-component-search/30 "2026-10-16T21:02:33Z")
if done right, these modules and format wont be that expensive at all. for instance im finishing off an envelope generator now that after panel/pcb the parts would be overall £6/7. stuff like the filter is under £10 and … --- ## [Source lists for power connector and tools and all that jazz](https://lookmumnocomputer.discourse.group/t/source-lists-for-power-connector-and-tools-and-all-that-jazz/3964)
**Author:** [@lookmumnocomputer](https://lookmumnocomputer.discourse.group/u/lookmumnocomputer)\ **Replies:** 3\ **Last updated:** [December 8, 2021, 8:06pm UTC](https://lookmumnocomputer.discourse.group/t/source-lists-for-power-connector-and-tools-and-all-that-jazz/3964 "2021-12-08T20:06:54Z")
I get this email a few times so figured should share the links I send over! the crimper, the ribbon cable and the power connectors. suitable for frequency central amongst others --- ## [My build progress](https://lookmumnocomputer.discourse.group/t/my-build-progress/345)
**Author:** [@timeorspace](https://lookmumnocomputer.discourse.group/u/timeorspace)\ **Replies:** 6833\ **Last updated:** [October 20, 2026, 5:51pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345 "2026-10-20T17:51:47Z")
A work in progress --- ## [A new(ISH) 12 voice polysynth](https://lookmumnocomputer.discourse.group/t/a-new-ish-12-voice-polysynth/8233)
**Author:** [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\ **Replies:** 33\ **Last updated:** [October 19, 2026, 1:48pm UTC](https://lookmumnocomputer.discourse.group/t/a-new-ish-12-voice-polysynth/8233 "2026-10-19T13:48:51Z")
Last year I created an 8 voice bi-timbral polysynth called “A Bit More”. It was rather clumsily executed internally with a lot of interconnect between the controller/assigner and the voice board. It worked well … --- ## [Moog(ISH) monosynth](https://lookmumnocomputer.discourse.group/t/moog-ish-monosynth/8264)
**Author:** [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\ **Replies:** 0\ **Last updated:** [October 18, 2026, 6:59pm UTC](https://lookmumnocomputer.discourse.group/t/moog-ish-monosynth/8264 "2026-10-18T18:59:06Z")
About 4 years ago I made a desktop monosynth based on the layout of the Moog source but I replaced the buttons for the parameters with physical controls. I added PWM and a second LFO for the PWM and a few other features,… --- ## [Repairs and Restorations](https://lookmumnocomputer.discourse.group/t/repairs-and-restorations/2934)
**Author:** [@CTorp](https://lookmumnocomputer.discourse.group/u/CTorp)\ **Replies:** 16\ **Last updated:** [October 11, 2026, 3:02am UTC](https://lookmumnocomputer.discourse.group/t/repairs-and-restorations/2934 "2026-10-11T03:02:25Z")
Continuing the discussion from Relay questions: Oldish RadioShack mixer my buddy gave me. It’s in pretty rough shape, broken switches, crusted faders, beat up paint, jacks just fall out of the sockets, etc. It works th… --- ## [Using "Voltage controlled capacitors" aka cool stuff using X5R caps](https://lookmumnocomputer.discourse.group/t/using-voltage-controlled-capacitors-aka-cool-stuff-using-x5r-caps/7925)
**Author:** [@Synthlurker](https://lookmumnocomputer.discourse.group/u/Synthlurker)\ **Replies:** 17\ **Last updated:** [October 9, 2026, 7:46am UTC](https://lookmumnocomputer.discourse.group/t/using-voltage-controlled-capacitors-aka-cool-stuff-using-x5r-caps/7925 "2026-10-09T07:46:12Z")
This is mostly me rambling about “wrong” uses for X5R capacitors. People tend to avoid these as the plague, as their capacitance drops A LOT compared to other types. The smaller the caps, the bigger capacitance drop can… --- ## [Relay speaker protection circuit](https://lookmumnocomputer.discourse.group/t/relay-speaker-protection-circuit/8199)
**Author:** [@K.ostas](https://lookmumnocomputer.discourse.group/u/K.ostas)\ **Replies:** 1\ **Last updated:** [October 6, 2026, 1:10pm UTC](https://lookmumnocomputer.discourse.group/t/relay-speaker-protection-circuit/8199 "2026-10-06T13:10:12Z")
I got a prefab (supposedly) TDA7266 board from AE to use as an amplifier for two home cinema satellite speakers on my desk. I put a bluetooth module to play music from my phone at its input and the sound is surprisingly … --- ## [WIP - Eth8. A DIY version of Intelligels octalink](https://lookmumnocomputer.discourse.group/t/wip-eth8-a-diy-version-of-intelligels-octalink/8256)
**Author:** [@willow2x](https://lookmumnocomputer.discourse.group/u/willow2x)\ **Replies:** 9\ **Last updated:** [October 6, 2026, 11:11am UTC](https://lookmumnocomputer.discourse.group/t/wip-eth8-a-diy-version-of-intelligels-octalink/8256 "2026-10-06T11:11:45Z")
With me having a 3D printer and a growing collection of synth cases, I wanted something simple to connect them with one wire (rather than a sea of 10foot noodles) I’ve decided to have a go at making a DIY version of Int… --- ## [KOSMO Snare + Mixer Stripboard Layouts](https://lookmumnocomputer.discourse.group/t/kosmo-snare-mixer-stripboard-layouts/8257)
**Author:** [@leonleonleon](https://lookmumnocomputer.discourse.group/u/leonleonleon)\ **Replies:** 3\ **Last updated:** [October 5, 2026, 12:39pm UTC](https://lookmumnocomputer.discourse.group/t/kosmo-snare-mixer-stripboard-layouts/8257 "2026-10-05T12:39:53Z")
Hi there, Can anyone recommend Stripboard layouts for: a Snare Module a small Mixer Module For the snare module i keep stumbeling over the 808 one: electro-music.com :: View topic - TR-808 Snare Stripboard has anyon… --- ## [A neat web utility to convert schematics to stripboard layouts automatically](https://lookmumnocomputer.discourse.group/t/a-neat-web-utility-to-convert-schematics-to-stripboard-layouts-automatically/8253)
**Author:** [@krztoff](https://lookmumnocomputer.discourse.group/u/krztoff)\ **Replies:** 0\ **Last updated:** [September 28, 2026, 6:29pm UTC](https://lookmumnocomputer.discourse.group/t/a-neat-web-utility-to-convert-schematics-to-stripboard-layouts-automatically/8253 "2026-09-28T18:29:37Z")
--- ## [Adding Gate mod to CV'ed APC](https://lookmumnocomputer.discourse.group/t/adding-gate-mod-to-cved-apc/8248)
**Author:** [@void](https://lookmumnocomputer.discourse.group/u/void)\ **Replies:** 6\ **Last updated:** [September 27, 2026, 5:34pm UTC](https://lookmumnocomputer.discourse.group/t/adding-gate-mod-to-cved-apc/8248 "2026-09-27T17:34:32Z")
I added this CV mod to my APC and it works wonders, however, i wish i can make it stop oscillating constantly until i make an input… can someone help me understand how to do this? or tell me instructions? i have been … --- ## [Frequency Central Florian Synthesizer](https://lookmumnocomputer.discourse.group/t/frequency-central-florian-synthesizer/8238)
**Author:** [@Soundbrigade](https://lookmumnocomputer.discourse.group/u/Soundbrigade)\ **Replies:** 10\ **Last updated:** [September 16, 2026, 11:56am UTC](https://lookmumnocomputer.discourse.group/t/frequency-central-florian-synthesizer/8238 "2026-09-16T11:56:57Z")
To honor Kraftwerk’s Florian Schneider, Frequency Central developed the Florian synth as a kit. I saw this one on Synth Cube’s website and ordered the pcb/panel kit. Checking my own stores, I could come up with resisto… --- ## [Built my first VCO -- what should I do with it](https://lookmumnocomputer.discourse.group/t/built-my-first-vco-what-should-i-do-with-it/8246)
**Author:** [@nubesvulpes](https://lookmumnocomputer.discourse.group/u/nubesvulpes)\ **Replies:** 17\ **Last updated:** [September 15, 2026, 5:49pm UTC](https://lookmumnocomputer.discourse.group/t/built-my-first-vco-what-should-i-do-with-it/8246 "2026-09-15T17:49:21Z")
Hello everyone, I’ve finally managed to build a VCO using an NE555P for oscillation, an LM325N as a pre-amp and then a 2N2222 as an amp. It seems to be decent enough and is quite stable but I really wonder if and where… --- ## [Need help identafiing a component](https://lookmumnocomputer.discourse.group/t/need-help-identafiing-a-component/8244)
**Author:** [@dreeve](https://lookmumnocomputer.discourse.group/u/dreeve)\ **Replies:** 4\ **Last updated:** [September 12, 2026, 10:07am UTC](https://lookmumnocomputer.discourse.group/t/need-help-identafiing-a-component/8244 "2026-09-12T10:07:29Z")
help i am having no luck in trying to decipher the code on this part i know its an stmicroeletronics but cant figure out what it is except blown up lol it is in a access virus ti desk top i got for super cheap any hel… --- ## [Simple piano keyboard?](https://lookmumnocomputer.discourse.group/t/simple-piano-keyboard/6350)
**Author:** [@mightywombat](https://lookmumnocomputer.discourse.group/u/mightywombat)\ **Replies:** 36\ **Last updated:** [September 11, 2026, 3:20pm UTC](https://lookmumnocomputer.discourse.group/t/simple-piano-keyboard/6350 "2026-09-11T15:20:50Z")
I’ve been looking for a simple circuit I can use to bodge together a tiny 1 octave keyboard with tact or lever switches. This is mostly soccer I’m supremely lazy and don’t like having to drag out my little Oxygen 25 when… --- ## [Looking for piezo mic amplifier circuit](https://lookmumnocomputer.discourse.group/t/looking-for-piezo-mic-amplifier-circuit/2960)
**Author:** [@CTorp](https://lookmumnocomputer.discourse.group/u/CTorp)\ **Replies:** 16\ **Last updated:** [September 4, 2026, 5:29am UTC](https://lookmumnocomputer.discourse.group/t/looking-for-piezo-mic-amplifier-circuit/2960 "2026-09-04T05:29:57Z")
I’m looking for a circuit to boost a piezo mic up to synth-ish level. Specifically a circuit that runs on a single supply (9v). Minimal components—don’t need any tone control, etc That disqualifies a lot of the circuits… --- ## [3d Printed Pipe Organ](https://lookmumnocomputer.discourse.group/t/3d-printed-pipe-organ/8237)
**Author:** [@zorch](https://lookmumnocomputer.discourse.group/u/zorch)\ **Replies:** 0\ **Last updated:** [September 3, 2026, 7:59pm UTC](https://lookmumnocomputer.discourse.group/t/3d-printed-pipe-organ/8237 "2026-09-03T19:59:37Z")
The temptation to make a keyless version of this that is controlled by Sam’s MIDI setup is real. https://makerworld.com/en/models/2151850-32-note-pipe-organ#profileId-2332053 --- ## [AS2164 VCA odd output](https://lookmumnocomputer.discourse.group/t/as2164-vca-odd-output/8235)
**Author:** [@nigeld](https://lookmumnocomputer.discourse.group/u/nigeld)\ **Replies:** 1\ **Last updated:** [September 3, 2026, 6:40pm UTC](https://lookmumnocomputer.discourse.group/t/as2164-vca-odd-output/8235 "2026-09-03T18:40:26Z")
Thanks to some help here before I got a VCA model based on the @HAGIWO dual VCA, sort of working. What I have on the breadboard is here: I’ve annotated this with what I think the parts are doing! When I look at the … --- ## [Battery setup, Li-ion 3.7V](https://lookmumnocomputer.discourse.group/t/battery-setup-li-ion-3-7v/8234)
**Author:** [@Bpbby](https://lookmumnocomputer.discourse.group/u/Bpbby)\ **Replies:** 7\ **Last updated:** [August 31, 2026, 5:46pm UTC](https://lookmumnocomputer.discourse.group/t/battery-setup-li-ion-3-7v/8234 "2026-08-31T17:46:41Z")
Hey, I am planning to make a rechargeable battery system to replace an old AA\*2 system. I have never used this kind of setup before, so I wanted to check it with you guys. Here is what I have got in mind. --- ## [The Psych-Tone Random Music Generator](https://lookmumnocomputer.discourse.group/t/the-psych-tone-random-music-generator/4117)
**Author:** [@Soundbrigade](https://lookmumnocomputer.discourse.group/u/Soundbrigade)\ **Replies:** 9\ **Last updated:** [August 30, 2026, 8:26pm UTC](https://lookmumnocomputer.discourse.group/t/the-psych-tone-random-music-generator/4117 "2026-08-30T20:26:29Z")
Enjoying my breakfast and midday lunch (and often evening meal) watching crazy YT-videos, I watched through a series of LMNC’s videos. Today I watched the video about the T2000 repair and the Psych-Tone and was surprised… --- ## [Be kind, please rewind](https://lookmumnocomputer.discourse.group/t/be-kind-please-rewind/8232)
**Author:** [@Bpbby](https://lookmumnocomputer.discourse.group/u/Bpbby)\ **Replies:** 5\ **Last updated:** [August 28, 2026, 3:12am UTC](https://lookmumnocomputer.discourse.group/t/be-kind-please-rewind/8232 "2026-08-28T03:12:05Z")
So I decided some time ago to start recording on cassette. I got some modern cassette recorder and I was shocked with how bad it sounded.. noise, electronic noise (not just my tunes), it was really bad. It got me think… --- ## [Start of Black Pill synth](https://lookmumnocomputer.discourse.group/t/start-of-black-pill-synth/8228)
**Author:** [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\ **Replies:** 14\ **Last updated:** [August 25, 2026, 7:35pm UTC](https://lookmumnocomputer.discourse.group/t/start-of-black-pill-synth/8228 "2026-08-25T19:35:25Z")
So I watched the video and build details of the black Pill mono synth and always thought it would be better as a simple synth you can play. So I picked up this Axiom 25 for next to nothing and just gutted it dow… --- ## [XVA-1 reworking](https://lookmumnocomputer.discourse.group/t/xva-1-reworking/7835)
**Author:** [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\ **Replies:** 9\ **Last updated:** [August 24, 2026, 6:19pm UTC](https://lookmumnocomputer.discourse.group/t/xva-1-reworking/7835 "2026-08-24T18:19:45Z")
Revisiting the XVA-1 project for a 3rd time, so last week I stole the UF-70 keyboard case housing from the XVA-1 project that I sort of completed 2 years ago. (Still needed work on dual functions). It was basically 2x XV… --- ## [MFOS Ring Modulator](https://lookmumnocomputer.discourse.group/t/mfos-ring-modulator/8169)
**Author:** [@Marty](https://lookmumnocomputer.discourse.group/u/Marty)\ **Replies:** 6\ **Last updated:** [August 24, 2026, 4:29pm UTC](https://lookmumnocomputer.discourse.group/t/mfos-ring-modulator/8169 "2026-08-24T16:29:27Z")
Hi all, Planning on building the Music From Outer Space Ring Modulator. First things first the website with 2 schematics https://musicfromouterspace.com/analogsynth\_new/RINGMODULATOROCT2007/RINGMODULATOROCT2007.html I… --- ## [XFM2 tuning/bank files](https://lookmumnocomputer.discourse.group/t/xfm2-tuning-bank-files/6802)
**Author:** [@TheUnicornController](https://lookmumnocomputer.discourse.group/u/TheUnicornController)\ **Replies:** 17\ **Last updated:** [August 24, 2026, 4:28pm UTC](https://lookmumnocomputer.discourse.group/t/xfm2-tuning-bank-files/6802 "2026-08-24T16:28:15Z")
Hi - hoping someone in here might have these - I’ve grabbed the parts for the XFM2 and registered for the software on the website, but the Zip archive I got sent only has the .bin file in it, not the tuning file or the f… --- ## [MFOS 8 stage phaser](https://lookmumnocomputer.discourse.group/t/mfos-8-stage-phaser/5550)
**Author:** [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\ **Replies:** 10\ **Last updated:** [August 23, 2026, 1:41pm UTC](https://lookmumnocomputer.discourse.group/t/mfos-8-stage-phaser/5550 "2026-08-23T13:41:52Z")
Latest project is an effect I fell in love with listening to the ARP Quadra, it looks complicated but I’m not phazed by it… --- ## [Scratching my head on octave selector ?!?](https://lookmumnocomputer.discourse.group/t/scratching-my-head-on-octave-selector/8229)
**Author:** [@nigeld](https://lookmumnocomputer.discourse.group/u/nigeld)\ **Replies:** 4\ **Last updated:** [August 20, 2026, 5:16pm UTC](https://lookmumnocomputer.discourse.group/t/scratching-my-head-on-octave-selector/8229 "2026-08-20T17:16:09Z")
I’m building my version of the performance VCO (See schematic above) but I’ve swapped out the tuner for a sine generator, and it’s all working great, but my octave selector was working backwards :frowning: In position… --- ## [Important NE5532 heads up](https://lookmumnocomputer.discourse.group/t/important-ne5532-heads-up/8230)
**Author:** [@DonErskine](https://lookmumnocomputer.discourse.group/u/DonErskine)\ **Replies:** 0\ **Last updated:** [August 19, 2026, 2:01pm UTC](https://lookmumnocomputer.discourse.group/t/important-ne5532-heads-up/8230 "2026-08-19T14:01:35Z")
I have just learnt that Texas has changed the specs of the NE5532… for the worse. Slower slew rate, and worst of all, lower maximum supply voltages. There are other changes too. This part is widely used in audio and sy… --- ## [Trying to make a wonder bible](https://lookmumnocomputer.discourse.group/t/trying-to-make-a-wonder-bible/8226)
**Author:** [@insanepoetry](https://lookmumnocomputer.discourse.group/u/insanepoetry)\ **Replies:** 12\ **Last updated:** [August 16, 2026, 8:18am UTC](https://lookmumnocomputer.discourse.group/t/trying-to-make-a-wonder-bible/8226 "2026-08-16T08:18:58Z")
i finally got around to attempting to recreate the wonder wonder bible but i seem to have come upon an issue i cant find addressed anywhere and that is the fact that the files on the wonder bible card are mp3’s and the w… [Next page](https://lookmumnocomputer.discourse.group/c/diy-stuff/7.md?page=1)