In message <819601260.23810.0@vms.dc.lsoft.com> PICLIST@mitvma.mit.edu writes:
> I am looking for a way to use the pic to control a resistor in a circuit
> (to use as a microcontroller controlled variable power supply).  Would
> anyone have any ideas how?  Thanks in advance.
>
You could look at multipliying DACs. Maxim do some 12 bit 8 pin
packages. Analog Devices do some. I'm afraid I haven't got the
device number to hand though.

Regards,

Mike Watson
--
Mayes uk