RAY'S SIMPLE PORTAMENTO

haxster · Posted: Wed Feb 18, 2009 1:35 am Post subject: RAY'S SIMPLE PORTAMENTO

This is easy to build. It was extracted from ray's sequencers. It is confirmed working with Soundlabs and other DIY VCO's.

The TL072 is just a buffer for multiple CV outs, if you needed more use a TL074 and repeat the OP-AMP pattern (All +inputs connect).

If you were going to add this to a soundlab internally (MOD), you have to add 100K resistors to the CV outputs and then connect at "AA" or PIN 6 on each vco. If you look on the schematic on PIN 6 it looks like a tree of 100k resistors for each CV. That's were you tap in. Your adding another 100k branch.

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