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Electronics => Repair => Topic started by: Axtman on August 15, 2024, 10:37:32 pm

Title: Educator II Power Supply schematic?
Post by: Axtman on August 15, 2024, 10:37:32 pm

Does anyone have a Hep Kit by Motorolla Educator II Power Supply schematic? This unit is plus/minus 5 volts for, I believe, a breadboard digital learning unit.

Title: Re: Educator II Power Supply schematic?
Post by: MathWizard on August 17, 2024, 08:03:00 pm

So it's a demonstration microcomputer from 1976 ? Whatever was in the PSU, there's probably not much to it. It might just be a center tapped transformer, rectifiers, filter caps, and 7805/7905 regulators. Or it could use a few discrete BJT's to make  regulator circuits.

Do you own one and have a problem? Did you open it up ? Just from a top/bottom PCB picture, or with a DMM, it would be pretty easy to map a PSU like above.