Archive of the former Yahoo!Groups mailing list: Korg Poly800/EX800 Users

Hi all,

Considering that the Osc section of the Poly-800 uses an additive form synthesis with Square waves, I thought that the next nice mod for mine would be to build an External Audio Input module.

This would help beef up the Osc section with either additional Osc modules or help treat external audio through the excellent NJM2609 VCF.

Looking at the schematics, I think I should use Pin 19. It looks like I could also use Pins 20 & 21. I though I saw a way to switch between the Noise generator and external audio.

Is this the way to go and should I use resistors or capacitors to wire in the Audio Input?

If there is a way to wire more than one input by mixing signals, that would be even better.