new to all this modular stuff

No worries, in regards to the KVM and the AE.
I was not planning on interfacing them.

Rather it looks as though my design circuits fall right into being AE modular friendly then.

All my DIY 5V modules such as 3 stage voltage shifter, and  dual S&H run on 5Vs and only output up to 5.08Vs as this is their power supply and they are built with rail to rail op-amps, such as the MCP6002 and ilk.

Very nice to see the AE modular.

Don't know why it took me so long to find this!


EDIT: Just looked at Noisebug as this is the closest to Canada.

Guess I picked a bad time to consider modular as the stock is probably quite tight.

But I am patient and I can wait.

I'd rather the full system in 2023 when they become available.

Here are some of the voltage specs of the Korg Volca Modular, for those who might not have seen this.


syntherjack.net/the-real-volca-modular-specs/


Not mentioned in the article, AFAIK the KVM is .5V/octave
I believe the built in converter converts from 1V/octave down to the KVM standard.

Although the KVM can take 5V inputs some are particularly nasty.

When I was testing out my 3 stage voltage shifter (0-5V voltage unipolar)
I hooked it up to the KVM RATIO input and even though I was buffering the CV via a MCP6002 opamp
it pulled down the 5V test voltage down to about 4 volts.

Basically the 5V out of my device was fighting with the 3.3V power on the KVM.
I measured the current from my buffered op amp 5 volt circuit and the current was almost 10ma!!!!!!!

As an additional test I even buffered the buffered op amp again with a sacrificial MCP607 op amp as a test,
and even with a double buffered 5V it still drew it down to 4V and drew 10ma.


So yeah, the Volca can't be interfaced DIRECTLY with 5V from my DIY.

I totally see the need of the the KVM interface for the AE modular.