Circuit bent Casio PT-50

December 10, 2013 · Posted in Uncategorized · Comment 

Hand built framework and additional panel design for the modifications.

This was the only Casio keyboard with ROM-Pack slot but no key lighting; instead it can load the ROM-Pack musics into an internal sequencer, and with the optional Casio TA-1 module it can even save them on audio cassettes. Even a RAM-Pack cartridge Casio RA-1 was made for this thing to save sequencer data – I never saw any other Casio keyboard designed for using it.

Despite this keyboard looks almost like a twin of the Casio PT-30, there are many small differences. 3 of the 8 preset sounds are changed, the chords and bass timbre is different and also the rhythm set is completely different and includes fill-in. Even the LCD has different segments and shows e.g. a “J” for major chords. Also the sequencer of this thing was changed and is horribly awkward like with Casio MT-70, because it apparently neither can record note lengths in realtime nor melody and chord together, thus everything has to be entered in different modes step by step. But by the general similarities I only explain here the differences to the PT-30.

Main features:

  • 8 OBS preset sounds {piano, harpsichord, organ, violin, flute, clarinet, trumpet, celesta}.
  • 16 preset rhythms {rock, rock’n’roll, disco, 16 beat, samba, latin rock, bossa-nova, beguine, tango, march, waltz, rock waltz, slow rock, ballad, swing 2beat, swing 4beat} made of analogue percussion + bass & piano accompaniment (contains no arpeggio).
  • tempo +/- buttons (19 steps, counts 1..20)
  • different editable sequencer (no realtime recording, terribly awkward!)
  • transpose buttons (12 semitone steps)
  • different LCD display shows pressed keys and chords (only important for the sequencer)
  • ROM-/ RAM- Pack slot (but no key lighting/ melody guide feature)
  • demo button (plays musics from the inserted ROM-Pack when present)
  • multi-chip hardware:
    • CPU= “NEC D1868G 004, 8314EK, Japan” (80 pin SMD)
    • 2x SRAM= “HD  B, 61914, 3D, 23″ (44 pin SMD)

The Devil’s Machine (Circuit Bent Kawasaki Keyboard)

August 14, 2013 · Posted in Uncategorized · Comment 

Circuit Bent Kawasaki toy keyboard.

Onboard resonant filter from Ray Wilson’s Weird sound generator.
Onboard pt2399 delay.
Variable LFO on the filter.
Huge pitch bend range.
3 distortion bend knobs.
Special DJ style “TRansformer” button.

Check out
http://thecircuitmolester.blogspot.com/
for more info

Circuit Bent Playtime Keyboard

July 20, 2013 · Posted in Uncategorized · Comment 

Time for a new circuit bending video, details below:

Playtime Keyboard

switched mono 1/4inch jack output
white LED
red LED
power starve control
pitch up/down control
hi-fi boost
Monotribe Sync input with 4 rotary glitch switch to select which button glitch you want. The Monotribe triggers various buttons on the keyboard to make it sound glitch – video to follow for that

.fd. online
Facebook – freeform delusion
Twitter – https://twitter.com/freeformd
eBay – Search for – Circuit Bent
My older Circuit Bending channel – http://youtube.com/eecouk

Circuit Bent Star Wars Technika FX

July 16, 2013 · Posted in Uncategorized · Comment 

Star Wars Technika – rehoused Star Wars sound FX keyring inside a Technika casing

switched 1/4inch jack output
white LED
4 red momentary buttons for each sound
toggle switch with rotary switch to select a sound to hold and loop
red latching button to select pitch on/off
pitch up/down control

Circuit Bent Mickey Mouse Clubhouse Piano

July 14, 2013 · Posted in Uncategorized · Comment 

Mickey Mouse Clubhouse Piano – with a very special guest playing!!

switched 1/4inch jack output
Pitch up/Down Control
Red Button Bass feedback control
Two Way switch for distortion or feedback with control knob

X1L3 – circuit bent – synth mod – Yamaha RX17

June 10, 2013 · Posted in Uncategorized · Comment 

Another 80′s drum machine fitted with an analogue filter, digital delay and a proco rat distortion circuit.

RC CIRCUIT BENT ANIMATRONIC DROID SOUND FX GENERATOR SYNTHESIZER

February 26, 2013 · Posted in Uncategorized · Comment 

CIRCUIT BENT CYBERMAN

Circuit bending: Tanner Galvin’s NOYS TOISE

February 18, 2013 · Posted in Uncategorized · Comment 

A mini-documentary about a “circuit bender” named Tanner Galvin who creates artistic and technically sophisticated musical instruments using old toys and keyboards.

More info @ noystoise.com

CASIO SK-1 (Upright) by S-CAT (Circuit Bent)

December 3, 2012 · Posted in Uncategorized · Comment 

Here’s a new video of nice circuit bent Casio SK-1, details below:

Running through a Mackie mixer, Drawmer Compressor, Bel BD-80 delay and a Roland DEP-3 Reverb.

2 4 – M O D I F I C A T I O N S

Tone / Rhythm Glitch. 14 Toggle Matrix.All mods create the classic SK-style glitches and drones on the keyboard as well as creating rhythm fills and variations.

Tone Glitch. 5 Toggles that exclusively effect the tones and voices.

Rhythm Mods. 1. Volume 2. Boost 3. Filter 4. Punch

Plus 1. Pitch Down (Affects Rhythms and Voices) 2. Reset (For when things get too much)

8bit House with Nanoloop + circuit-bent Monotron

October 26, 2012 · Posted in Uncategorized · Comment 

Both, a circuit-bent Korg Monotron and a Nanoloop (Synthesizer and Sequencer on Nintendo Gameboy) are synced by the trigger impulses sent by a Roland TR-626 drum computer.
This allows to filter the raw chiptune sound of Nanoloop by the analog filter of the Monotron. The retrigger of the Monotron LFO is the red wire. The sync mod (circuit-bending) is done like shown here: http://stevewoodward.posterous.com/lfo-reset-point-on-korg-monotron

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