Coleco ADAM Printer PSU Tester

[RGDiRocco]

New addition to the Museum: a Coleco-made ADAM Power Supply Load Tester (P/N AP-83-C-076 REV 0, dated 1983). Plain DB-9 male, four Dale RS-10 wirewounds, two small bias resistors — that's the whole bench tool. Tech would unplug the printer power cable from the back of the ADAM, plug it onto this board, and read all four rails (+5V, −5V, +12V Inductive, +12V Logic) under load in under a minute. Acquired from a former Coleco Test Lab employee. Likely one of very few survivors. Full analysis at forum.colecovisionadam.com soon.

ADAM PSU Tester.png (341.78 KiB) Viewed 338 times

[RGDiRocco]

Screenshot 2026-06-28 120415.png (86.79 KiB) Viewed 332 times