Oakley Modded Korg Micro-Preset.
When I got this it was only in a fair condition. The case was broken and some original parts had been replaced. Since it wasn't a perfect specimen I decided to modify it extensively.
The mods were designed to enhance the sound not change it. The basic signal pathway is exactly the same - but the control over the sound is now far greater. The two internal Korg35 filters are freed of their preset characteristics and are both allowed to go their separate ways. The Synthe section now has it's own dual EGs (based on the Oakley Little-EG circuit) while the preset voices can now utilise the original Synthe's EG (VAR) or their original preset envelope (PRESET) with a flick of a switch. The original Synthe EG can now be switched between AD and AR modes.
The internal mains supply was removed and so was the little speaker and amplifier circuitry. This makes the unit lighter, safer to work on (useful when heavily modifying it) and most importantly gets rid of the mains hum that the Micro-preset normally suffers from.
The unit is now powered from an external AC power pack.