Casio SK-1 Video

Here is a demo video of the Circuit Bent Casio SK-1.

Circuit Bent Casio SK-1

A true classic keyboard from the 80's.  This circuit bent Casio SK-1 offers a huge range of sounds and textures.  This is truly a must have instrument for any studio or live performance; as long as the sounds suite your music taste :).

This one will be offered on eBay once I get the video posted and some sound samples loaded.

Stay tuned!

Circuit Bent YAMAHA PSR-22

Latest keyboard bend, Yamaha PSR-22.

This keyboard is equipped with 15 modifications.

• FM data line modification
• Body contact points
• Glitch switches
• Loop switches
• Distortion Switches

Keyboard is fully functional in its original condition.  The Yamaha PSR-22 has on board effects, pitch control, custom  drum programmer and digital synthesizer.

 PSR-22, close up.

With the modifications to this keyboard endless sounds and random noises can be generated.  This keyboard also goes into a loop and plays on its own (Rhythm and Orchestra sections).

New Projects for May

I have been to many yard sales recently and have some ground work for new projects.

Up coming:  Circuit Bent VTech Alphabet Desk and a Yamaha PSR-22

Back by popular demand, I have made a new batch of Atari Punk Consoles.  Blinky and Inky versions to be posted on eBay soon.  Check them out!

Circuit Bent Yamaha PSR-11

I have started a circuit bending project for a client.  The modification of a Yamaha PSR-11 with the request that the unit deliver a particular sound under tweaking of glitch switches and mixed data signals.

Sample video to get a feel for some of the available sounds this synthesizer can deliver under the influence of my copper wire, switches and solder.

 May 1, 2011

Project is complete.  This project included a data line cut on the YAMAHA YM812 chip (8-switches) and 9 other glitch modifications.  Glitch modifications included, feed back, body contact, increased tempo on rhythm and other sounds and 6 other bends centered on altering the sound from this machine.

YAMAHA PSR-11 Circuit Bent Session by gebrochene augen

Monster Box, Creature

I have started a new direction, a Goblin box.  Dimensionally  it is smaller than previous versions yet it still will yield incredible sounds.   Here is the start, some basic parts from my supplier.

The circuit is designed, but I am still working out the details of the graphics for this unit.  More to follow.

April 3

Circuit is just about complete, just a few more wires to solder (output, CV, and power jacks).  Painting is now finished, see below, I'll let the paint fully cure and harden before assembly.

 

April 5

Soldering of the potentiometers, jacks and switches is now complete.  A trial run last night confirmed that the circuit is working and is operating as planned.  Time to close it all up and install the knobs. 

 

April 6

Assembly is complete and all systems GO!

 More details and video to follow.

April 8

Demo hosted on YouTube.

This circuit is based on a square wave oscillator, two of them actually; one astable oscillator driving a monostable oscillator.  Both signals are combined together in the circuit and a single square wave frequency is the output.  This build hosts frequency, rate and an added choke control on each oscillator.  There is a CV input on the monostable side and I included two feedback switches.  One of these switches sends the astable signal through a different route to join the output signal.  In addition, there is a input power jack for 7 to 9 VDC 2.1mm input and a 1/4" mono audio output jack.  As the finally, I created the creature which sits proudly atop the cast enclosure in a faded white to gray/black background.

April 11

Just adding an additional picture of the design.

April 17

Adding audio clip.

Atari Punk Console, Hello Kitty

Atari  Punk Console (APC) housed in a Hello Kitty candy tin.