One of the most important things to me in building the polymonster was to make sure not to have to modify the PCB in any way or hurt any hard-to-find components. Parts *have* been modified and desoldered, but only readily avaliable components and in such a way that the board can be restored to original condition.

These mods are far from perfect and at the time of writing i'm still testing and evaluating the circuitry.

The first thing one needs to do is to undo the chaining of the parameters for all the voices and to override the computer interfacing for pitch cv / gate. The polysix only has one exponential converter for the pitch CVs, on the receiving end it has a 4051 that works like a sample-and-hold. Basically you just iterate over the incoming CVs and make sure the appropriate S&H is adressed. To interface the Gates and to unchain that from the lines that drives the iterations of the pitch S&H i simply desoldered IC4 and IC5, IC6 also needs to be removed obviously since it's otherwise going to try and do all kinds of stuff.



There will be more info soon.

Schematic