HP-IL device Seal s5801c

[PeterP]

(02-06-2021 06:55 PM)John Keith Wrote:  The X and Y capacitors (plastic boxes), toroids and transformer are standard for both US and European mains-powered equipment. One way to determine the line voltage would be to trace the connections to the primary side of the transformer(the left side in the 2nd. pic in post #1). If there are 4 active pins on that side, it is a dual-primary transformer that can be hooked up to run on either 120 or 240V.

The transformer says : Primary 220V, Secondary: 2 x 6V.
There are 2 pins on the right side (in 2nd pic in post #1), 4 pins on the left side. From the two pins on the right side, one goes to the TO (and then to one torroidal), the other seems to go to the fuse.

based on the above, are you still thinking the primary side is the left side (the one which has 4 pins), not the right side?