Have 2 of these and just took my meter through the OPT's
there are 15 leads in 3 rows of 5
the last row is 0, 4, 8, 16, Green
I think think Green is a feedback winding, this OPT is said to be a copy of a McIntosh design....
Anyway I got 120.2 ohms from green to ground on the first one and...