High Speed
Williams, 1986You're currently viewing posts by Pinsider grumpy.
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Quoted from oneperson:Took voltage readings at the wires that run to the 2N6059 transistor
B 13.5
This is your problem, should be @ 6.5 volts. So the regulator chip is not applying any control voltage to Q-5. With no control Q-5 will pass unreg voltage straight thru - a pn junction drop.
Quoted from oneperson:The 5 volts is a bit low 4.86
If you change R-8 to 5.11 k ohm this will rise to 4.96 volts. If you change it to 5.23 k ohm your output will be 5.05 volts. Be sure to only use 1% resistors.
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South Haven, MI