Ok, this is busted right?
Take 1, with the power supply it came with. Which is this thing, it says output is 9v 660 ma. I did for a second think "maybe this is not the power supply it came with", it is used after all and this does not say strymon on it. I actually have an identical one already, I don't know from where, there was a second I thought "didn't I buy a strymon 9v supply recently? this must have been it", but I just double checked and nope, I bought a different one (snark), this ... I don't know where I got the other one from. Either way, this is it with nothing else in the chain going through the positive grid using this power supply
this is it using a different guitar, the other identical but different power supply plugged into a different outlet (straight into the wall rather than in that rats nest of shit above), using different instrument cables, again solo straight into the different amp
that dog is so fucking stupid
ok and here's a third time, using one of the 9v cables that has been flawlessly powering my el capistan from the 250ma out on the pedal power 2 for a billion years. it did take a longer time for the noise to show up in this configuration, but there it is.