# Uncategorized **URL:** https://lookmumnocomputer.discourse.group/c/uncategorized/1.md [Latest](https://lookmumnocomputer.discourse.group/latest.md) · [Categories](https://lookmumnocomputer.discourse.group/categories.md) --- ## [Who, Where, What. the community](https://lookmumnocomputer.discourse.group/t/who-where-what-the-community/544)
**Author:** [@twinturbo](https://lookmumnocomputer.discourse.group/u/twinturbo)\ **Replies:** 422\ **Last updated:** [September 20, 2026, 7:41pm UTC](https://lookmumnocomputer.discourse.group/t/who-where-what-the-community/544 "2026-09-20T19:41:58Z")
Most forums I frequent(ed) were well established, usualy car forums, often we joind up for shows… This is a little different… So this is a what might connect us thread… To avoid pillagin by “threat actors” don’t be too … --- ## [Introductions: Say hello, tell us about yourself and your projects](https://lookmumnocomputer.discourse.group/t/introductions-say-hello-tell-us-about-yourself-and-your-projects/24)
**Author:** [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Replies:** 1021\ **Last updated:** [September 8, 2026, 7:01pm UTC](https://lookmumnocomputer.discourse.group/t/introductions-say-hello-tell-us-about-yourself-and-your-projects/24 "2026-09-08T19:01:15Z")
It’s customary to have a topic on a forum where new users can introduce themselves. Here goes. About me. I’m Bitnik on MuffWiggler Forums where I’m new and quite chatty, but to reiterate the important stuff I’m very ne… --- ## [Reverse polarity protection and voltage clamping](https://lookmumnocomputer.discourse.group/t/reverse-polarity-protection-and-voltage-clamping/8236)
**Author:** [@Jos](https://lookmumnocomputer.discourse.group/u/Jos)\ **Replies:** 4\ **Last updated:** [September 27, 2026, 8:41pm UTC](https://lookmumnocomputer.discourse.group/t/reverse-polarity-protection-and-voltage-clamping/8236 "2026-09-27T20:41:02Z")
TL/DR: when using clamping circuits in conjunction with reverse polarity protection you need to check whether the clamping circuit’s working is not negated by the presence of a reverse polarity protection diode. Let’s a… --- ## [A litany of dumbassery](https://lookmumnocomputer.discourse.group/t/a-litany-of-dumbassery/526)
**Author:** [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\ **Replies:** 1270\ **Last updated:** [September 24, 2026, 10:54am UTC](https://lookmumnocomputer.discourse.group/t/a-litany-of-dumbassery/526 "2026-09-24T10:54:10Z")
So I left out a break on a stripboard and nearly fried an op amp, and then applied the wrong voltage to a brand new Arduino and fried its regulator, hi, how’s your weekend going? --- ## [Testing a new Multimeter/scope](https://lookmumnocomputer.discourse.group/t/testing-a-new-multimeter-scope/8242)
**Author:** [@craigyb](https://lookmumnocomputer.discourse.group/u/craigyb)\ **Replies:** 2\ **Last updated:** [September 15, 2026, 6:44pm UTC](https://lookmumnocomputer.discourse.group/t/testing-a-new-multimeter-scope/8242 "2026-09-15T18:44:37Z")
So I got this new Multimeter today the FNIRSI DST-210, it’s a multimeter with a built in 10mhz scope and a signal generator with multiple waveforms. It has a higher resolution than my existing meter which is two decimal… --- ## [Mail Day Thread](https://lookmumnocomputer.discourse.group/t/mail-day-thread/101)
**Author:** [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\ **Replies:** 4518\ **Last updated:** [September 14, 2026, 9:05am UTC](https://lookmumnocomputer.discourse.group/t/mail-day-thread/101 "2026-09-14T09:05:42Z")
MAIL DAY THREAD!! Show off your amazing synths, equipment, supplies, etc. here! I dont care if you got a tayda order with some neat things for your project or a million dollar synth! Feel free to show it all off!! :smi… --- ## [Anyone have any Blue pill STM32 Experience?](https://lookmumnocomputer.discourse.group/t/anyone-have-any-blue-pill-stm32-experience/8240)
**Author:** [@Chip](https://lookmumnocomputer.discourse.group/u/Chip)\ **Replies:** 1\ **Last updated:** [September 6, 2026, 10:30am UTC](https://lookmumnocomputer.discourse.group/t/anyone-have-any-blue-pill-stm32-experience/8240 "2026-09-06T10:30:24Z")
The Blue Pill STM32 for arduino and midi programming --- ## [Inspiration / what u listening to](https://lookmumnocomputer.discourse.group/t/inspiration-what-u-listening-to/511)
**Author:** [@devicex](https://lookmumnocomputer.discourse.group/u/devicex)\ **Replies:** 1351\ **Last updated:** [September 5, 2026, 3:52am UTC](https://lookmumnocomputer.discourse.group/t/inspiration-what-u-listening-to/511 "2026-09-05T03:52:06Z")
https://www.youtube.com/results?search\_query=colin+benders 1-15 now great jams . --- ## [Music share thread - Share your work!](https://lookmumnocomputer.discourse.group/t/music-share-thread-share-your-work/174)
**Author:** [@Caustic](https://lookmumnocomputer.discourse.group/u/Caustic)\ **Replies:** 1497\ **Last updated:** [August 31, 2026, 8:01pm UTC](https://lookmumnocomputer.discourse.group/t/music-share-thread-share-your-work/174 "2026-08-31T20:01:42Z")
Hey there folks, I just realized that there wasn’t a thread where people on this forum can share music they are working on. Post yo jams, they dont got to be polished or perfected. I just like hearing stuff people make.… --- ## [Unexpected LMNC](https://lookmumnocomputer.discourse.group/t/unexpected-lmnc/3759)
**Author:** [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\ **Replies:** 29\ **Last updated:** [August 22, 2026, 7:05am UTC](https://lookmumnocomputer.discourse.group/t/unexpected-lmnc/3759 "2026-08-22T07:05:39Z")
10:42: “Oh no! what the Fluke happened here? I thought we were looking at a world class DC voltage standard and not a Look Mum No Computer circuit bending victim.” --- ## [Behringer UMC 404 HD troubles](https://lookmumnocomputer.discourse.group/t/behringer-umc-404-hd-troubles/933)
**Author:** [@foorje](https://lookmumnocomputer.discourse.group/u/foorje)\ **Replies:** 72\ **Last updated:** [August 13, 2026, 3:40am UTC](https://lookmumnocomputer.discourse.group/t/behringer-umc-404-hd-troubles/933 "2026-08-13T03:40:20Z")
Hello everyone, Some of you have already heard my complaints a little bit ago on the last livestream (17th of may). Anyway, I’ve had the Behringer UMC 404 HD for a little while now, however I’ve had a fair amount of pop… --- ## [CU on Sam’s DE-Tour in 2027](https://lookmumnocomputer.discourse.group/t/cu-on-sam-s-de-tour-in-2027/8213)
**Author:** [@Willi359](https://lookmumnocomputer.discourse.group/u/Willi359)\ **Replies:** 2\ **Last updated:** [July 21, 2026, 7:42am UTC](https://lookmumnocomputer.discourse.group/t/cu-on-sam-s-de-tour-in-2027/8213 "2026-07-21T07:42:16Z")
There are dates for 3 LMNC LIVE gigs in Germany in february 2027 I booked tickets for Hamburg. Is anyone from the forum going there too? this worked well in (2024) and (2026) There are also dates and locations for UK … --- ## [Considering Selling up.. UK](https://lookmumnocomputer.discourse.group/t/considering-selling-up-uk/8212)
**Author:** [@twinturbo](https://lookmumnocomputer.discourse.group/u/twinturbo)\ **Replies:** 8\ **Last updated:** [July 14, 2026, 8:58am UTC](https://lookmumnocomputer.discourse.group/t/considering-selling-up-uk/8212 "2026-07-14T08:58:22Z")
I have not realy been engaged with my modular for 2-3 yeas, It has been a great learning experinece and I imploy my learnings across many other types of project but given my musical skills are nearly Zero and I have no d… --- ## [Synthesized 2026](https://lookmumnocomputer.discourse.group/t/synthesized-2026/8191)
**Author:** [@ShedSynth](https://lookmumnocomputer.discourse.group/u/ShedSynth)\ **Replies:** 2\ **Last updated:** [June 29, 2026, 9:45am UTC](https://lookmumnocomputer.discourse.group/t/synthesized-2026/8191 "2026-06-29T09:45:48Z")
Synthesized - Cambridge UK - 27 & 28 June 2026 --- ## [Opamps, real or fake](https://lookmumnocomputer.discourse.group/t/opamps-real-or-fake/4762)
**Author:** [@Jos](https://lookmumnocomputer.discourse.group/u/Jos)\ **Replies:** 21\ **Last updated:** [June 12, 2026, 9:45pm UTC](https://lookmumnocomputer.discourse.group/t/opamps-real-or-fake/4762 "2026-06-12T21:45:38Z")
Have you been wondering about ICs being real or not? IMSAI Guy in this video takes a look at a few opamps and shows you an easy way to find out for some 741 opamps whether they are real or not: --- ## [Frequency Multiplier](https://lookmumnocomputer.discourse.group/t/frequency-multiplier/8178)
**Author:** [@Marty](https://lookmumnocomputer.discourse.group/u/Marty)\ **Replies:** 22\ **Last updated:** [June 11, 2026, 4:22pm UTC](https://lookmumnocomputer.discourse.group/t/frequency-multiplier/8178 "2026-06-11T16:22:46Z")
Hi guys, Came across this one and it sounds awesome. And this is the schematic Im not seeing any opamps used for inputs and outputs. Is there some improvement needed? Or is there someone here that ha… --- ## ["The Funny Pages"](https://lookmumnocomputer.discourse.group/t/the-funny-pages/1552)
**Author:** [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\ **Replies:** 454\ **Last updated:** [June 2, 2026, 2:57am UTC](https://lookmumnocomputer.discourse.group/t/the-funny-pages/1552 "2026-06-02T02:57:58Z")
--- ## [My build lack of progress](https://lookmumnocomputer.discourse.group/t/my-build-lack-of-progress/1419)
**Author:** [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\ **Replies:** 129\ **Last updated:** [May 30, 2026, 5:47pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-lack-of-progress/1419 "2026-05-30T17:47:28Z")
I started (finally) building the new case today. Got most of the wood cut and rail holes drilled, then paused to wait for delivery of the last wood pieces which UPS said would be here probably by 5:15 and definitely by 9… --- ## [Арпеджиатор + шаговый секвенсор](https://lookmumnocomputer.discourse.group/t/topic/8187)
**Author:** [@Mich76](https://lookmumnocomputer.discourse.group/u/Mich76)\ **Replies:** 3\ **Last updated:** [May 28, 2026, 5:19pm UTC](https://lookmumnocomputer.discourse.group/t/topic/8187 "2026-05-28T17:19:09Z")
Здравствуйте!!! Посмотрел на вас и ваши золотые руки и… Тоже придумал кое что🔥 Это моя первая поделка, пока на макетной плале и с небольшим функционалом, но в будущем буду добавлять :fire: --- ## [LMNC Eurovision](https://lookmumnocomputer.discourse.group/t/lmnc-eurovision/8087)
**Author:** [@Dave](https://lookmumnocomputer.discourse.group/u/Dave)\ **Replies:** 50\ **Last updated:** [May 25, 2026, 5:57pm UTC](https://lookmumnocomputer.discourse.group/t/lmnc-eurovision/8087 "2026-05-25T17:57:55Z")
A massive congratulations, @lookmumnocomputer Performing at Eurovision, and headline news on the BBC --- ## [MFOS 2 pole 12db state var. filter](https://lookmumnocomputer.discourse.group/t/mfos-2-pole-12db-state-var-filter/7863)
**Author:** [@Marty](https://lookmumnocomputer.discourse.group/u/Marty)\ **Replies:** 89\ **Last updated:** [May 24, 2026, 3:13pm UTC](https://lookmumnocomputer.discourse.group/t/mfos-2-pole-12db-state-var-filter/7863 "2026-05-24T15:13:59Z")
Im wondering which resistors (around opamp or LM13700) to change in order to get zero resonance when resonance potentiometer is fully closed (ccw). It now shows a little spike as if resonance is dailed in a tiny bit. Any… --- ## [The BST Thread (Buy, Sell, Trade)](https://lookmumnocomputer.discourse.group/t/the-bst-thread-buy-sell-trade/1608)
**Author:** [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\ **Replies:** 278\ **Last updated:** [May 23, 2026, 9:47pm UTC](https://lookmumnocomputer.discourse.group/t/the-bst-thread-buy-sell-trade/1608 "2026-05-23T21:47:31Z")
Hello All! I figured since a lot of us are creative, have some GAS, and have some Gear, we should maybe start a BST Thread for us Forum Members. Here is a set of Guidelines: Create and Edit your Post as you wish, bu… --- ## [Debouncing Tactile Swicthes](https://lookmumnocomputer.discourse.group/t/debouncing-tactile-swicthes/8007)
**Author:** [@Marty](https://lookmumnocomputer.discourse.group/u/Marty)\ **Replies:** 8\ **Last updated:** [May 23, 2026, 2:16pm UTC](https://lookmumnocomputer.discourse.group/t/debouncing-tactile-swicthes/8007 "2026-05-23T14:16:14Z")
Hi guys, I’m fiddling a bit with a shift register circuit that I eventually will turn into another drum sequencer unit. on the breadboard, the tactile switches are sending more that 1 trigger. I think they need some de… --- ## [What was that filter sweeping formant trick?](https://lookmumnocomputer.discourse.group/t/what-was-that-filter-sweeping-formant-trick/1712)
**Author:** [@Maxhirez](https://lookmumnocomputer.discourse.group/u/Maxhirez)\ **Replies:** 11\ **Last updated:** [May 23, 2026, 7:03am UTC](https://lookmumnocomputer.discourse.group/t/what-was-that-filter-sweeping-formant-trick/1712 "2026-05-23T07:03:59Z")
I’ve been going back through the Patreon forum and searching here and I can’t find it. Does anyone remember the trick @lookmumnocomputer mentioned that sounded like 90% of a formant filter with 10%. Of the effort/cost? --- ## [Good luck Sam! Eurovision Tonight!](https://lookmumnocomputer.discourse.group/t/good-luck-sam-eurovision-tonight/8177)
**Author:** [@twinturbo](https://lookmumnocomputer.discourse.group/u/twinturbo)\ **Replies:** 0\ **Last updated:** [May 16, 2026, 8:15am UTC](https://lookmumnocomputer.discourse.group/t/good-luck-sam-eurovision-tonight/8177 "2026-05-16T08:15:50Z")
@lookmumnocomputer Good luck Sam, We are all rooting for you whatever the outcome :slight\_smile: Have fun , it must be amazing to be part of such a huge institution in music. And will see you in Glasgow in November … --- ## [Phantom Power XLR Microphone to Eurorack](https://lookmumnocomputer.discourse.group/t/phantom-power-xlr-microphone-to-eurorack/2353)
**Author:** [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)\ **Replies:** 8\ **Last updated:** [May 13, 2026, 9:22pm UTC](https://lookmumnocomputer.discourse.group/t/phantom-power-xlr-microphone-to-eurorack/2353 "2026-05-13T21:22:50Z")
I’ve got an XLR condensor microphone that I’d like to use with my synth, but it seems to take 48v phantom power to work. Are there any solutions for using these types of devices with a synth? Would I be able to wire up … --- ## [Best 3340 VCO out there?](https://lookmumnocomputer.discourse.group/t/best-3340-vco-out-there/8168)
**Author:** [@tamasgal](https://lookmumnocomputer.discourse.group/u/tamasgal)\ **Replies:** 5\ **Last updated:** [May 12, 2026, 9:53pm UTC](https://lookmumnocomputer.discourse.group/t/best-3340-vco-out-there/8168 "2026-05-12T21:53:05Z")
Looking for the best 3340-based VCO out there. The less flaws the better :slight\_smile: What’s your pick? My favourite is Hero VCO from @analogoutput --- ## [KOSMO @ superbooth26](https://lookmumnocomputer.discourse.group/t/kosmo-superbooth26/8155)
**Author:** [@Willi359](https://lookmumnocomputer.discourse.group/u/Willi359)\ **Replies:** 4\ **Last updated:** [May 8, 2026, 7:20pm UTC](https://lookmumnocomputer.discourse.group/t/kosmo-superbooth26/8155 "2026-05-08T19:20:55Z")
this worked last year Who is going to visit superbooth2026 this year? I have a ticket for all three days but have not (finaly) decided how and when to got… @craigyb wearing a red flower again? I’ll wear as much LMNC-sw… --- ## [Drone Day - Saturday, May 24, 2025](https://lookmumnocomputer.discourse.group/t/drone-day-saturday-may-24-2025/7873)
**Author:** [@zorch](https://lookmumnocomputer.discourse.group/u/zorch)\ **Replies:** 3\ **Last updated:** [May 2, 2026, 2:03pm UTC](https://lookmumnocomputer.discourse.group/t/drone-day-saturday-may-24-2025/7873 "2026-05-02T14:03:03Z")
I think Sam mentioned this recently. Not to be confused with drone day (the flying variety) on the 3rd of the same month. Anyone planning on doing anything? I might stream on Twitch. --- ## [Cooling paste or](https://lookmumnocomputer.discourse.group/t/cooling-paste-or/8156)
**Author:** [@Marty](https://lookmumnocomputer.discourse.group/u/Marty)\ **Replies:** 2\ **Last updated:** [April 12, 2026, 4:57am UTC](https://lookmumnocomputer.discourse.group/t/cooling-paste-or/8156 "2026-04-12T04:57:29Z")
Hi guys Im building another Thomas Henry VCO555 and im trying to make it as stable as possible in terms of temperature stabilization. My first VCO555, i soldered both transistors with the flat sides surfaces touching a… [Next page](https://lookmumnocomputer.discourse.group/c/uncategorized/1.md?page=1)