Korg
Korg FK-2 Mr. Multi
Another weird one! A rotary selector selects between a four stage phaser, wah and phaser and wah combined. The latter mode is supposed to be something out of this world. Deadend Fx (who else) have a projects for this beast and as usual, don’t hesitate to support these guys by bying some nifty PCBs. They … Read more
Keio Synthesizer Traveler F-1
An old, obscure, weird fuzz/wah/filter/noise/volume pedal from Japan dated from the the early 70s. Schematics and more info HERE. Note that a couple of resistor values was is incorrect in the original schematic but it has been corrected for the layout below.
KORG: MS-20 Filter, Tim Escobedo Version
If the other MS-20 filter is all too much, maybe this will be easier. It’s Tim Escobedo’s adaptation of an MS-20 style filter for guitar, just using the an LM13700 and running at 9v. KORG MS-20 FILTER – TIM ESCOBEDO VERSION – VERO LAYOUT
KORG: MS-20 Filter – Rene Schmitz Version
This is the Rene Schmitz version of the MS-20 Filter, which is used in the later models. I didn’t include the CV control inputs, as I have no plans on using CV. KORG MS-20 FILTER – VERO LAYOUT KORG MS-20 FILTER – BUILD REPORT This is a very particular sound, and while it doesn’t have a lot … Read more
Korg DST-1
Here’s the correct layout for the Korg DST-1 that I previously laid out based on an unverified schematic. It uses an AN360 audio pre-amplifier chip (you can still get some on eBay), but I haven’t found a replacement other than making a discrete version of the chip. A discrete version wouldn’t take up that much … Read more
Korg MS-20 Filter
Switching it up this week and doing a Filter Friday. This one could be used for both synth and guitar/bass. It’s a cool filter effect based around the LM13600/13700.