/r/CircuitBending

Photograph via snooOG

Circuit bending is the creative, chance-based customization of the circuits within electronic devices such as low-voltage, battery-powered guitar effects, children's toys and digital synthesizers to create new musical or visual instruments and sound generators.

Thats it.. For circuit benders and circuit bending

/r/CircuitBending

21,213 Subscribers

1

Beginners Question: Bending old vivanco video mixers

0 Comments
2024/04/26
20:21 UTC

4

How to turn off Casio SA-10 button tone

Hi,

I got an old Casio SA-10 keyboard and I want to know if there's any possibility to turn off the annoying button sound (as can be heard here during switching sounds: https://www.youtube.com/watch?v=Vp5Uj9l9NEw)

Many thanks :)

1 Comment
2024/04/25
13:19 UTC

3

Circuit benders question?

How many of y’all have a background in electronic/engineering? As a newbie some of this stuff is so interesting, but I don’t know left from right to put it simply. I’ve read (skimmed) through a lot of Reed ghazals book and it’s almost another language to me. Albeit somewhat helpful, but boy is it difficult to comprehend everything. I have a few short term goals by just getting toys/keyboards to glitch, pitch bends, etc, but it’s super daunting not understanding the whys and hows.

To put it shortly I have a speak and music that I purchased and to do a pitch mod you need to install a LTC1799 on it and the tutorial guide makes no sense to me. I was wondering if anyone had similar introductions to circuit bending and/or could point me in directions and make me understand this niche hobby more.

13 Comments
2024/04/25
06:55 UTC

5

Bent PA-tester (Superlux pink stick)

Removed 2 resistors and replaced the (4-mode) rotary switch by a toggle switch. Now there's 2 sounds: feedback-oscillation, feedback-oscillation with pitch and volume envelope and click-train. The two oscillations can be reached depending on how fast you switch back to the left after switching to the right.

1 Comment
2024/04/24
22:11 UTC

2

SK5 Power Supply

I have recently got a power supply from ebay, the owner claims it is a concertmate / sk5 original PS but the sticker is missing! I rather be cautios and check it before I fry my beloved keyboard, do you guys know how I could do it? I have a multimeter but I'm not sure on how to use it properly? I have read somewhere I need to check polarity?

Thank you!

6 Comments
2024/04/24
07:50 UTC

12

9v powered speaker and spell

Since I couldn't add a second video to my previous post. Here's another video of the over powered S&S.

0 Comments
2024/04/23
00:00 UTC

19

Slowly degrading speak and spell

Can you power a speak and spell with 9v? Why yes you can. Is a good idea? Probably not but this unit is well over 15 years old and is finally starting to degrade. The result of powering with 9v is you get a much bigger crunch in sound by over driving the entire machine, the bent points magnify that a great deal resulting maximum chaos.

0 Comments
2024/04/22
23:53 UTC

2

Pocket operator!

Hi! I'm súper new in this.. i saw on tiktok someone that has his pocket operator connected to a circuit bending toy, how can i do that? I hace the k.o pocket operator, and i don't know how can interact, with what or idk, any advice?

4 Comments
2024/04/22
15:01 UTC

3

Question about Bending TRSF16128A with Arduino

Hey I recently started a project and I'm looking to bend the TRSF 16128A chip that came with in the toy (data sheet here). I'm still pretty new to this but I've seen people use the Arduino before to reprogram ICs. My question is, is this possible to do with the TRSF 16128A? I can't find much information on it beyond the data sheet, but I also don't want to go down this path if it's not possible. Any feedback/help would be greatly appreciated. Thanks!

0 Comments
2024/04/21
20:33 UTC

2

Working with small SMD components?

I've done some bends with some vintage stuff with a lot of through hole components but it's hard to find vintage stuff to bend for cheap. I'd like to work with newer stuff but I'm not sure how to go about working with tiny SMD components. Any tips?

TIA

5 Comments
2024/04/21
16:17 UTC

1

Problem with membrane on Speak & Math

I have a circuit-bent Speak and Math from 1981. It worked really well up until last week. The issue seems to be with the membrane keypad. If I squeeze the keypad a certain way, I get some sounds out of it, but I don't get the original sounds/characters on the screen. Does anyone have any clues for me to follow? I fear that I have to start a new one. Thanks!

4 Comments
2024/04/18
16:53 UTC

1

Kirby's Fun Park // Zezette Mix

0 Comments
2024/04/18
08:15 UTC

13

Last post on my toy elephant piano. Because I broke it.

If you’ve seen my other posts and given advice it helped out a lot! Had it all hooked up through alligator clips and connected to a pot and it would be able to crank out super speedy pitch, if I went too far it would crash and I’d have to reset, but I found a sweet spot where it would be just about to crash and then loop some pretty cool glitchy sounds.

So I figured I was ready to try and put some wires in to make it permanent, I had soldered the power lines back in successfully and where I had my green clips I tried soldering some wires to the tinnnnny little resistor and… well I fucked something up. Whole toy is broken.

Onto the next project!

Thanks for looking folks.

7 Comments
2024/04/18
04:52 UTC

1

Question about resistor and soldering wire.

In my last post I was asking for beginner tips on this elephant piano I found at a thrift store. For context it’s a newer toy with the blob, but I got lucky and found the pitch resistor on it which is one of those little surface mounted ones. Now I fooled around connecting some alligator clips onto a potentiometer and the other ends onto the resistor as best as I could and was able to get control over the pitch which was exciting, however at the lowest on the knob it was the stock sound and I was only able to shift the pitch up super fast.

Now if I’m getting ready to solder wires in and connect to my pot I’ve seen videos where people remove the resistor and some that solder to the resistor on those surface mounted ones. What’s my best bet, and is the reason I can’t pitch the sound low because of the original resistor? If I remove that will I have a wider range of play?

Sorry for the noob questions. This is my first attempt at bending and I’m not sure of the terms of everything yet you might have to explain it like I’m five.

9 Comments
2024/04/17
04:46 UTC

1

Need help with a grounding issue in NYC

Hi! I'm a former circuitbender/builder who now sings through an old FX box I built almost 15 years ago. The issue is, it's not properly grounded. I keep getting complaints from sound guys about the buzzing it makes, which makes them mix my vocals poorly during live shows to compensate. If anyone can help resolve this relatively simple issue, I'm happy to pay! My skills and confidence aren't what they once were or I'd dive in myself.

Edit: I posted this not for advice--but to find someone to fix it ❤️

https://preview.redd.it/i6p8f914cpuc1.png?width=3024&format=png&auto=webp&s=d21fa19c2b0d5ea28cec72df05ee496011339ae6

5 Comments
2024/04/15
20:21 UTC

2

Buzz regarding a lower voltage?

Hi, so I started my first Circuit Bending project with a Hing Hon EK-001 and had gone pretty far with it without any problems so far. After being close to what I wanted to consider “done” I took a break for a couple of days. When I came back to finish my project, this buzz popped out of nowhere and does not go away!

After doing research, de-soldering and trying to see if the problem had to do with any of the stuff I had implemented, nothing seemed to work. I am very sure that there is a lower voltage passing through the circuit, as the lights are not as bright anymore, nor the potentiometer gets to the same it once was (still “works” as shown in the video). I changed the batteries even for new ones but got nothing out of it.

Any ideas? Feel free to ask me anything too. I do not know my electric engineering like that so apologies if I used any wrong terms.

5 Comments
2024/04/15
00:19 UTC

1

an arcade lever can be used to make a circuit bending ?

Hello, I have a question to see if you can help me solve it, an arcade lever can be used to make a circuit bending, that is, use an arcade lever as if it were a potentiometer.

https://preview.redd.it/xufvpg48gduc1.png?width=2640&format=png&auto=webp&s=a23aeb8da17048779c537ca3f8ee19fd2d6de92c

7 Comments
2024/04/14
04:22 UTC

4

Rat feedback loop question

I added a feedback loop through a switch and 100k pot. The feedback seems to not be as loud as the guitar volume and plays in and out. I'm wondering if I soldered to the wrong points on the effect switch.

1 Comment
2024/04/13
14:58 UTC

2

Gameboy Color Variable Clock Mod

Hello, me again...

After having some (albeit limited) success with some basic circuit bending on an old Yamaha keyboard (video coming soon), I've decided my next project will be adding a variable clock mod to my old Gameboy Color. I've seen plenty of people installing this mod onto DMG Gameboys, but far less people, if any, installing it onto a Gameboy Color (presumably due to the smaller enclosure and far busier architecture).

Having spent more time than I care to admit just staring at the shell and its' innards, I think my only option may be to remove the speaker and utilise that cavity as a space for the potentiometer that I plan to install for control over the clock speed.

I've already purchased the LTC 1799 precision oscillator that I plan to use and have a variety of linear potentiometers on the way from Amazon, but I could really use some advice on how to move forward from here. As mentioned in my previous post on here, I'm competent enough with a soldering iron but currently SUCK at reading schematics, so if somebody could kindly direct me as to where I should install the oscillator and potentiometer onto the board, I'd be super grateful!

4 Comments
2024/04/12
10:28 UTC

2

modify a camera that does not have video outputs

Hello, is there a way to modify a camera that does not have video outputs so that it has one? I plan to modify the circuit inside to do circuit bending and generate glitches, more than anything I do it in this camera because the floppy disk reader does not work and if I break the camera it there is not much problem, that's why I want to make a video output to make it worth the circuit bending. My camera is a Sony Mavica MVC-FD75

https://preview.redd.it/pl7xlyfx4ztc1.jpg?width=200&format=pjpg&auto=webp&s=b07f93f3881bb8e298dac7a90844193c3324f9b5

3 Comments
2024/04/12
04:14 UTC

3

Questions about Discman bends and shorting pins ...

hi :) i'm curious about trying to mod a discman based on what i read here (https://www.nicolascollins.com/texts/cdhacking.pdf) and here (https://r20029.wordpress.com/) ...

the part i'm most interested in is trying to mod the discman's mute feature that engages when the CD is skipping or paused, allowing you to hear the audio stored in the buffer somewhat like a loop.

in the nicolas collins PDF, he says he's able to "lift the mute pin" and, in the r20029 article, she alludes to a force mute pin on the RAM IC.

i'm still somewhat new to bending but have been able to identify where this mute pin is on the IC in the discman i'm hoping to mod.

what i'm wondering is: to bypass the mute, would i go about this by trying to de-solder it from the chip? if so, are there suggestions for de-soldering something so small?

or is there another way? i bought an on/off switch but see it has two leads (? not sure if that's the right term) ... could i solder two wires to the IC pin and then to the leads on the on/off switch? or would the on/off switch need a wire from the IC pin and a wire from somewhere else? (where would that other place be?)

thanks for considering this question :)

10 Comments
2024/04/11
09:53 UTC

3

Potentiometer ratings

I’m newer to bending and I’d like for someone to explain pot ratings to me in terms of application in relation to signal use(video/audio) and positioning within a circuit.

I bent a bit of video gear and got some desired glitches out of it, but when I connect a potentiometer in between the source and the destination the pot doesn’t seem to convey the signal correctly. No activity until the last 30ish% of the knob range and that was testing with a range of pots (1k-1M)

Any advice would be much appreciated.

10 Comments
2024/04/10
17:04 UTC

Back To Top