HP-IL device Seal s5801c

[PeterP]

(02-06-2021 02:05 AM)Paul Berger (Canada) Wrote:  [...]
If you can figure out the AC input I would probably start with 110V and see if you get +5V across the power pins of the HPIL chip as per Dave's post earlier. If you have a variac available you could even start with a lower AC input voltage and then raise it until you get something reasonable on the DC side.

Paul.

1) The grey transformer says :primary : 220V, secondary: 2 x 6V
2) I've attached a picture of the underside PCB in case that is helpful.

based on the discussion, I am now really not sure if this thing is DC in, AC out or the other way around....