I am trying to better understand the nature of triggers in Eurorack.

I was monitoring Korg sq64 DRUM outputs (simple triggers) with an oscilloscope and noticed it was inverted from what I expected. like a high signal at rest that had a brief square dip to 0 when it triggered.

so when I try to plug it into a Tembra Modular Exhale, where the vactrol contolled attack and release respond to triggers, it gives me a weaker signal than I would expect.

DFAM seems to have a different kind of output.

what I’m confused by is how it seems like triggers are just called triggers, and no one says “negative trigger” or something to that effect to distinguish. so I can’t even tell what is the typical kind of trigger and which ones I should get for what purpose.

I thought understanding the difference between gates and triggers and clock was enough, but now triggers aren’t even straightforward!

anyone have an easy framework for navigating triggers and picking the right ones for the job?