So you have tested everything from the motherboard to the floppy drive. Still having problems? Have you tried testing the power supply? This Daily Drill Down by Faithe Wempen gives you the scoop on ...
Here are 4 simple 12V power supply circuits with output voltages around 12V. First power supply circuit is built with BD139, one zener diode and a few passive components. Each of the schematic is very ...
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