re help me i m not clever how to make power supply in article hydra gatech edu gt a prism gatech edu skelton joel phillip writes i need to make a power supply that can take input from a cigarette lighter in a car v dc and drive volts at up to amps i know enough to know that a simple voltage divider with two resistors won t do it right can such a thing be made from radio shack able parts without too much difficulty jps bf p s i ve looked for premade things like this at radio shack but none of it seems to go any higher than about ma joel skelton north avenue trade school dept of round things gt a prism gatech edu ask for scooter technologies and receive see if radio shack has a national semiconductor adjustable voltage regulator national part number lm t or lm k these devices are rated for an input to output differential of up to volts amps digi key corp has these parts as well as several other useful regulators if you don t have their catalog their phone number is i can only guess that you may intend to recharge a vdc nicad battery with this device and if i m right you may want to look through some of the hobbiest books to get various ideas for battery charging circuits first if you get stuck e mail me your fax number if you have one and i ll send you some suggestions or schematics e mail willisw coe nw clemson edu
