Original Gameboy DMG variable speed clock mod
I stuck an LTC1799 oscillator module in a lil box which can be connected up to the gameboy via 1/8" stereo cable for variable speed under/overclocking. I really didn’t want to add any ugly controls to the Gameboy itself, so this worked out well. It runs like normal without it plugged in, but with it plugged in you're able to use coarse and fine control knobs to drop it to a near-stop at 100Khz, or speed it up to 7.12Mhz (original gameboys run at 4.19Mhz). It crashes any higher than that, so I capped the speed there (though the 1799 does go up to 33Mhz). Also added a switch to set the max speed at either 1x or 1.7x, so in a performance setting there's no need to fumble around for the proper speed after dropping it down. Fun for music, also a quality of life improvement for the Pokemon grind. This gameboy has been a nice restoration project, and has a few other mods as well (Backlight, bivert chip, internal pro-sound mod, internal speaker amplifier, glass screen cover).
Check the photo gallery for a wiring diagram! The 1799 module I used came from Amazon, though any will work.
August, 2020.
Speak & ____
Spell
Read
Math
An assortment of glitch switches, coarse pitch control, hard on/off, touch contacts for pitch modulation, "repeaters" and looping glitch switches.
Geosafari Traveler
Five glitch trigger buttons of varying styles and intensities, able to trigger chaotic string of device's internal synthesized speech vocabulary Hard on/off switch • Distortion
Furby
Port for Atari 2600 joystick control • Hard on/off • 1/8" Audio Output • Joystick controls for speech glitches, movement glitches, and sound hold. Blue sound reactant LED behind left eye • Aesthetic modifications that cause people to give me weird looks.
Gameboy
Switch to overclock • "ProSound" mod
Wuv Luv
Really strange furby-like toy. Has some incredible glitchy synthesis abilities.
Pitch knob with hard on/off • Button for glitch triggering (squarewave synth/noise/speech synthesis) • Sample loop (eating sound) • Sample loop (clicking) • Touch contacts for pitch up • Pitch down/distort switch • Hard on/off • 1/8" audio output
Bliptronic 5000 Grid Synth
Starve/battery drain knob • Hard squealing distortion • Switch: Causes fuzz and turns all grid lights on, along with engaging semi-random notes in a row when a button in the row is pressed • 4x switch for engaging entire row of notes (C, E, G, C)