On Mon, Apr 28, 2008 at 4:45 PM, <rolindsay at yahoo.com> wrote: > It is not really a stabilizer. Quite the opposite, in fact. It pulses, varying the duty cycle. I don't know what its designed to do but if you integrate the output you get about 10 volts, independent (within reason) of the supply voltage. At what frequency should it cycle? Regards, Simon