LFO \Modulation pedal for Korg

Started by tomc, November 06, 2010, 08:57:23 PM

Previous topic - Next topic

tomc

Hi. I need help with a LFO/ modulation pedal for a Korg Trident that was lost years ago.
I have just had my old Korg Trident resurected after years of not working and would like to build an LFO/
modulation pedal to replace the one lost. This pedal was a Korg MS-04
It operated the VCF with a 10v peak to peak of -5 to +5v.
It had 4 wave form selections of triangle, square, random (s&H) and glissando. LFO speed control with led to
show speed and an amplitude level adjustment on the LFO output waveform. Also has a bend adjustment that
controls width to change tone colour of the VCF fcM. It operated with a 9v battery
Any help with a design of similar or even improved nature would be very much appreciated.


tomc

I  have managed to get a schematic but am having trouble working out what all the componenst and their values are. If you can help with the parts please add them to the post or if you have a suggestion to modify the schematic for an easier build please let me know as I lack design skills and have limited building knowledge
http://www.korganalogue.net/korgms/service/ms04/ms04schematic.jpg

slacker

There's a nice cleaned up schematic with values linked to in the thread Lurco posted above.