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I have been seeking an evelope filter with attack and decay control (3leaf Wonderlove) but also want to use the envelope to control other pedals (like the Moog MF-101).

The moog has a large housing which makes me wonder if it would be more possible to add a control for attack time to the filter over adding cv out to a smaller pedal.
I am not looking to do this myself, I think it is beyond my capabilities, but I am willing to compensate anyone who could help.

I would appreciate anyone's thoughts, opinions, deterrent messages of the impossible...

i hope this is not covering a topic breached in the recent past, character limitations of the search function make looking up "cv out" pretty difficult...

if the moogerfooger has midi I would not start cutting on it. the boxes are big because there are two big PCB's. some of them have 3 PCB's. you might not have much room inside. I would guess that the moogerfooger is midi and the envelope is produced by a micrcontroller DAC. you can not mod software. you could bypass the microcontroller but this is not easy or without complications. I also think the moog resale price drops a lot when you mod it.

you can however setup anything with an envelope to have envelope out. %99 of the time the envelope will be built around a capacitor that charges for attack and discharges when the cap hits some voltage to trigger the decay phase. the charge time is controlled by the current through the pot to the capacitor. the same is also true for the discharge time through the decay pot. some envelopes use operational transconductance amplifiers or transistors or opamps to control the current to the cap but the concept is still the same. your task is to buffer that cap voltage with something very high impedance like a transistor voltage follower or a non inverting opamp TL072. you may need to amplify the envelope and/or dc offset, attenuate etc.. to have a 0v to +5v range that is a popular standard. the timing cap will likely be 1uf or bigger. it could be 100nf maybe. it can be any kind of cap. google envelope generator schematics and envelope filter schematics to get a general idea of the way they work before you dive in. having an oscilloscope will help a lot in probing for the right capacitor. your scope input should be buffered by a high impedance source again or it will short the cap to ground through a 50ohm resistor and the envelope won't work.

Moogerfoogers is not midi controlled, all analog controlled. Either way that was super helpful thank you!