> > Also, I now know why the +5 V is high. It has a UA 7805 3 terminal regulator > serving as a voltage reference for a TIP-3055 so the supply can provide more > current. That 7805 has a forward biased diode between the center terminal > and ground, thus raising the output voltage by right around 0.5v. I expect I > will leave it alone.
When used as series pass transistor the TIP-3055 will usually drop 0.6v across the emitter under any significant load. Adding a silicon diode in the 7805 base is the normal fix... http://www.bristolwatch.com/ele/basic_power_supplies.htm > > The same design is used for the +24V, which comes out at 24.2V. > > So, odds are that this supply could drive two floppy drives. > > JRJ > > > JRJ
