lots of circuit diagrams and parts lists...covers all kinds of power supplies and charges...also battery zappersResistors R3 and R4 keep output transistors Q1 and Q2 from loading down the oscillator. The two transistors drive ... When one transistor is biasedaon, the other is cut-off. ... ii +12V 43 um . o, lo. rev ac *_ _ 2A Us in- ct +5V 0 v0! 1 IC nov, soanbsp;...
|Title||:||Power Supply and Battery Charging Circuits|