I have a Bally Squawk and Talk board, pinball version, and I want to test it out. Is there any way to power it using a switching power supply with the standard +5, +12, -5 arrangement?
Dan:
Go to www.PinRepair.com and click on the Bally 1977-1985 repair link. Then look through the table of contents, and click down where it talks about sound boards.