Circuit Bent Hing Hon EK-001

Archive of commissions & previous builds

Moogfest build + resources are here

Model no. GEK001-BB26

This overview video is split into chapters - view it on youtube to see individual sections.

  • Hard on/off switch

  • 4 drum glitch switches

  • Internal speaker on/off

  • Internal pitch circuit bypass

  • Pitch/Vibrato touch contact

  • CV/Gate trigger inputs for Kick, Snare, Hi-Hat, and Cowbell sounds

  • Breakout box with mods, connects to the keyboard via DB15 cable (included)

    • 1/4” audio output with volume control

    • 3x distortion modulation knobs with on/off

    • Coarse pitch tuning knob

    • Glitchy freakout switch

    • Pitch optic-theremin

    • Distortion optic-theremin

    • LFO

      • On/off switch

      • Rate, Shape, Depth knobs (Shape goes between triangle and square)

      • Switch for selecting LFO destination: pitch or distortion/amplitude

    • Latch on/off (holds last two keys pressed)

    • Tone generator on/off

    • Rhythm modifier switch

    • Experimental 8 point patchbay for glitches, distortions, pitch control. Accepts CV input from external devices.

August 2020.

Model No. GEK001-BBL25

Commissioned by Bazzazian.

Modifications:

1/4" Audio Output • Coarse pitch control • Coarse pitch optic theremin • 3x distortion/modulation knobs (Harsh/squealing, Droning, Grainy) • Optic theremin for harsh/squealing distortion • Touch contact for pitch down/manual vibrato • 4x glitch switches (Kick, HiHat, Snare, Cowbell) • Tone generator • Rhythm Skip • Two note polyphony latch • Rhythm pass/note mute

External LFO box (powered by keyboard, connects via 9pin cable) containing: On/Off, Knobs for Rate, Shape (Triangle to Square), and Depth, ability to send to either pitch or distortion, and a rate indicator LED.

2016.

Selected builds 2008 - 2010

The modifications being implemented on many of these are the same as Model No. 21 above, but some with the addition of 3 RCA/Phono jacks. One jack outputs a video signal (only on CRT televisions) that shows black and white visuals. The other two jacks are an input and output for any video source that travels via a component cable. The video signal fed to the keyboard is twisted up through the keyboard's modifications and spit back out. These video-centric mods can be seen in the two videos below.

Another notable feature of the EK-001 is that it contains a stock line-in jack. This makes it very easy to send the audio from an external device through the EK-001. Video to the right shows a Roland TR-606 being run through an EK-001 with modulation being applied.