Ever needed a low power 120volt AC power source for
your car, van or truck? Well this circuit should do the trick for you. It will
supply 15 watts of AC power to a device. It should power lamps, shavers, small
stereos and small appliances. If you draw to much power the circuit will shut
down all by itself. The output of this circuit is a square wave so there may be
some noticeable hum on audio units plugged into it. To reduce some of the hum increase
the value of the output capacitor which is at .47uf now. That transistor in the
circuit are high power PNP transistors. Radio Shack part number 276-2025 are
good ones to use or TIP32. The transformer is a 24 volt 2 amp center tapped
secondary Radio Shack part number 273-1512 or equivalent.
