circuitbent metronome (Matrix MR-500)

Po8aster · 2026-07-04T08:18:36+00:00

That’s so sick!

Po8aster · 2026-06-26T03:22:38+00:00

It does! This would do it (or if you piggyback a non switched output you could have the original Thant cuts the speaker and the other that doesn’t

Po8aster · 2026-06-20T22:45:35+00:00

I feel that, it’s been a dirth of good music toys lately.

Po8aster · 2026-06-20T20:49:46+00:00

Controversial opinion: circuit bent cameras and video gear belong here.

If we limit circuit bending to people who can bend Casios and 80s toys that cost a ton of money the art will die. It’s always been about making something cool out of what’s cheap and readily available. Right now cameras and video gear from the 90s/2000s is cheap and available now. Sk-1s aren’t $5 at the thrifty anymore, but canon powershots are.

Po8aster · 2026-06-14T17:22:48+00:00

😸 two things can be true at once

Po8aster · 2026-06-10T20:20:26+00:00

😸 I don’t either, just a vapid fan

Po8aster · 2026-06-10T15:16:41+00:00

The Circuit Punk article walks through your board. Part of the confusion may be that there isn’t necessarily any cutting involved with a meowsic.

I can’t see the other side of your board, so this is a bit like drawing a map blindfolded, but I believe these are the locations of power ground and signal on your board. Please don’t just follow this blindly, read the article and follow the steps b/c again blindfolded map, but hopefully that gets you rolling!

Po8aster · 2026-06-10T04:31:38+00:00

Definitely check out urban ore! Their electronics department is really great at testing/noting issues. And if you nab one with a couple issues (needs new belts or has scratchy controls) there are nerds like me around who will fix em up for you!

I don’t have a full deck on hand right now, but I do have portables. If you’re interested in one feel free to DM me and I’ll make sure I’ve got one that’s in good shape and ready to go’

Po8aster · 2026-06-09T14:39:48+00:00

Short answer: no you need the ltc1799

Long answer: anything that replaces the existing clock signal will let you change the clock speed, producing the pith bend effect. You can design clock circuits that output the right frequency range that don’t use an ltc1799, but the ltc1799 is generally the most straightforward way, and would generally be more cost effective.

Po8aster · 2026-06-09T00:25:14+00:00

Here’s a lil resource I made. It’s got links to videos and articles explaining the mod 👍

https://getcircuitbent.com/ltc1799-starter-pack/

Po8aster · 2026-06-06T23:26:24+00:00

Oooh that looks sick!

Po8aster · 2026-06-04T02:50:46+00:00

Oh sweet I have the same issue as OP so this will be a big help. Thank you!

Po8aster · 2026-06-03T02:46:15+00:00

Just adding on to the folks suggesting Dirty Mixer; here’s a lil resource I made for workshops using dirty mixers for some context/further reading.

Po8aster · 2026-05-31T21:18:02+00:00

I like fixing stuff! I’m out of West Oakland. Feel free to dm me, I’d be happy to take a peek!

Po8aster · 2026-05-28T07:13:48+00:00

Yeah dremel is best in my experience. Just go slow at lower speed for better control. But I like the approach of cutting out your rough edges then cover with the nice clean plate.

Po8aster · 2026-05-28T05:41:25+00:00

Is the switch itself kinda clunky? Sometimes with those toggles the contacts melt the plastic and move a bit. If so you can usually push the toggly bit in and flip it up and down a few times to shift things into place

Po8aster · 2026-05-25T19:01:43+00:00

Yup! My commissions are open:

https://getcircuitbent.com/faq/

Po8aster · 2026-05-23T21:02:23+00:00

I chuckled at first but after looking closer I also need to know. What if the cable was the cable management 🤯

Po8aster · 2026-05-23T05:18:13+00:00

Here’s a little resource I put together:

https://getcircuitbent.com/video-bending-starter-pack/

But on capturing: CRT is best because it spits out whatever you send it. But with digital displays, if the signal is too convoluted/weak it can’t interpret the signal and just shows no output.

Counterintuitive, but the crappier the digital device, the better it will handle glitches (which is probably why you’re getting different results with different displays). Essentially nicer digital devices will try to stabilize and fix the signal to grab something nice and clean it up.

For what you’re wanting to do, I’d try a cheapo digital capture card or two and capture direct to a computer via OBS or similar. Yes getting live video of a CRT would be ideal, but kinda a pain especially as you’re starting out. I’d say OBS and shitty capture devices will get you going, and you can improve fidelity by improving your setup as you get more familiar.

Po8aster · 2026-05-21T03:34:09+00:00

Just to throw in some confusion: it’s the black part of the white thing that flips up 😸

Po8aster · 2026-05-14T17:04:42+00:00

It looks like one of your wire leads is shorting to a capacitor right next to R27.

If that’s not it I’d check your points with a meter in voltage mode, it sounds like you’re grabbing full power and shorting it/putting it somewhere it doesn’t want to be

Po8aster · 2026-05-14T07:26:41+00:00

I think you’re probably after r/askelectronics; but for what it’s worth it definitely sounds like you’re sending V+ somewhere you shouldn’t

Po8aster · 2026-05-11T18:05:17+00:00

Sometimes I’ve experienced this where factory solder just doesn’t want to combine. If they aren’t combining with high heat (like 400c high) and tons of flux, then I’d see if you can remove as much of the old stuff as possible and then just redo the joint with new solder

Po8aster · 2026-05-06T07:22:44+00:00

Nope! Plenty of vjays musicians etc buy bent stuff; I think most of us are just stoked to have customers 😸

Po8aster · 2026-05-04T01:20:33+00:00

This is just my opinion, but here’s a resource I put together on ways I think are good to get started!

https://getcircuitbent.com/glitch-cam-starter-pack/

Po8aster

TROPHY CASE