If anybody with some electrical chops could help me I would appreciate. I've lost the power supply for my late 80's Grid interface. It seems to be an odd jack and voltage, or at least I can't find a replacement and don't know enough about electrical power to determine what the right replacement could be. It needs 7-10Vac, 1.5 amp; not sure how to spec the barrel size. Anybody know?

the quick n dirty is to access a "universal plug kit" you see with some aftermarket charging systems (like outboard battery/charging systems for mobile electronics)

If you are nice about it - you could probably even convince the ratshack employees to let you try a couple of plugs in-store