Casio SK1
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The following tutorial was swiped from the interwebs while it was still available (back when Tablebeast was a nicer fella); is presented for the sake of posterity and common knowledge; and is not the work of anyone affiliated with Intelligent Machinery, nor any of its imaginary subsidiaries. The first thing you want to do is inspect your Casio SK-1. Make sure it works before you open it up.
Tablebeast Casio SK-1 Tutorial |
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This article first appeared in the August 1987 issue of Keyboard Magazine .
Keyboard Article: MIDI Mod for Casio SK-1
Gijs of Geiskes.nl has just sent me some information on their recent experiments with patching signals from an Casio SK-1′s ROM chip to a video monitor . The circuit is simply a diode to prevent the back flow of current and a resistor to drop the +5 Volt logic gate to a +2 Volt required for generating a video signal. The color of the pixel is determined by the voltage in between 0 ( Black ) and 2 ( White ), so if multiple points on the ROM chip were mixed with various resistor values color images will occur.
SK-1
The SK1 is known in the circuit bending world as being one of the most interesting and diverse instruments available for modification.
* Casper Electronics » Casper SK-1
* Casper Electronics » SK1 bending
I’ve teamed up with UK bender Paul Parry aka Oceanus to bring you this detailed tutorial on bending the Casio SK1 keyboard.