5th Annual Moog Circuit Bending Challenge

Here is the official list of finalists for

Moog Circuit Bending Challenge 2016

This is was my un-official list taken from youtube...

Published on Mar 22, 2016
My entry for the Moog Circuit Bending Challenge 2016. Vola V-System is a 
video game inspired sequencer with sound cartridges 
made from toys. The actual bends are simple but the concept makes this 
machine really flexible in my opinion. It can be a 
beat machine, "sampler" or toyinstrument. It all depends on what cartridge you use. 

I am from Finland and I do these noisy things. I am also on Facebook and Instagram. 


On Instagram as Olascary.

Thanks for your interest.

Mike Sisk

Mike's entry into the 4th Annual Moog Circuit Bending Challenge 2014
Published on Mar 27, 2016
This is my entry to the 2016 Moog Circuit Bending Challenge. In this video I 
will show the process of modifying a Yamaha PSS-140 
keyboard with pitch adjustment, FM data line modifications, low pass audio 
filter, and echo controls while staying under the $70 
budget limit. 

I added 8 toggles to control the flow of data between the main CPU and the 
FM sound chip. This allows you to pick one sound, turn 
a few data lines off, select a new sound, then turn the data lines back on 
and now you have a new modified sound that is sometimes 
a blend of the two stock sounds. When the data line is in the off position 
it routes that "open" data line through a 22K resistor 
and to a high/low select toggle. That toggle then can routes to either 5V 
(high) or GND (low). This keeps the keyboard from crashing 
less often since high and low states are how the IC is programmed. I found 
some good info about the FM data line mods here 

I used a Barbie sing-a-long Karaoke to add echo effects. I am feeding the audio 
from the LPF into both the Aux and mic inputs and 
then using the original "aux/mic" knob to mix between a wet (echo through mic) 
and dry (no echo though aux) signals. I added echo 
decay, echo pitch select, echo coarse, echo fine and main output level controls 
to the barbie karaoke. I found some useful info on 
this at casperelectronics.com The karaoke unit was bought at goodwill for $4.99

The wood enclosure was built from both recycled 1/4 plywood and new oak from 
Home Depot. The yamaha keyboard was bought at Goodwill 
for $8.99 and the total cost of this project was $60.69

Here is a link to my build pictures 

Here is my Bill of Material for this project 

Mike Tewz

Mike's entry into the 4th Moog Circuit Bending Challenge 2014
Published on Mar 28, 2016

Build Instructions / Materials


(Uploaded the video in the final moments before the deadline. I didn't click the "publish" button until after it finished
 uploading which took hours due to slow connection. Not to worry, in my video manager you can clearly see the upload time & date for any discrepancies! )

Published on Mar 21, 2016
A synthesizer mashed face-first into a motor controller mashed into a kids' 
toy guitar. See  for details.
Published on Mar 26, 2016
Here's my entry for the fifth annual Circuit Bending challenge, hosted by 
Moog Music! In this video I try and run over 
the modifications I've made to a Casio MT-55 keyboard. All sounds are raw 
aside from slight dynamics processing. 

You can find progress pictures, schematics, and information on the building 
process here: HERE
And a bill of materials can be found here: HERE

If you have any feedback or questions that aren't answered by the schematics 
and other documentation just comment, send me a 
message here on youtube, or email me at george.gleixner@gmail.com - always 
happy to get in touch! 

Points of interest in this video: 

0:26 - Lead distortion knob
1:44 - Rhythm and chord distortions
2:42 - Touch contacts
4:00 - Lead distortion optic theremin
4:35 - Squeaky highpass/wahwah type mod
5:28 - Pitch down mod
6:37 - LFO (to audio cut)
8:55 - LFO (to pitch)
10:35 - Random note trigger 
11:03 - Noise generators
12:15 and onward - Fooling around
Published on Mar 27, 2016

This is the video for my entry into the Moog Circuit Bending Challenge 2016

Build instructions and Bill of Materials is Here
Published on Mar 27, 2016 This is my entry for the 2016 Moogfest Circuit Bending Challenge. Please see the documentation at the links I will be posting below so you can build one yourself. HERE The large knob on the left located on the front panel in the video is for controlling the tape speed BTW. Please use headphones or a decent set of speakers as there are many subtle tones embedded here. Thank you again to Pete at Casper Electronics for inspiration and knowledge. Thank you to Bob Moog, Reed Ghazala, and Nicolas Collins for my fledgling adventures in electronics. Enjoy and please watch my video many times, recommend circuit bending to friends and family, and build it before buying it.
Published on Mar 27, 2016
Hello everyone, this is my entry for the Moog Circuit Bending Challenge: Peanut-1.
Apologies for the poor video editing (it was my first time..) and well, you can 
laugh to my Italian accent, as long as you do it 
in front of a pizza WITHOUT pineapple on it!

The Peanut-1 is made of two Yamaha Pss-30 rehoused and modified to create some 
weird and harsh noises. The Pss-30 is known to be 
a hard toy to modify as it doesn't allow you much if compared with other keyboards, 
although I am quite satisfied with what I came up !

Here you can download BoM, Schematics and the pictures: 


Links to other parts of the video in case you want to skip:

00:00 Intro
01:54 Few Words
03:03 In the Beginning...
06:37 How It Works
14:43 Jam Session till the end
15:44 Schematics Pictures
17:17 Pictures of the Making of
20:20 More Jam

Hope you enjoy it, thanks!
Published on Mar 26, 2016
Patient Alpha is a post circuit bending reimagination of the 80s keychain with 
the laser noises called the Executor, 
Echo Keyller, Thriller and some others. 

This video is a submission to the Moog Circuit Bending Challenge for Moogfest 
2016! It is a compilation of demo videos 
and a build video from Becky Stern. 
Check out her mega awesome channel 

Complete step by step build instructions here:

Curious Sound Objects on Instagram: