From: invntr <invntr@bcpl.net>

> The renowned peter michaux <porkproducts@home.com> wrote:
>
> > it doesn't look like there is a capacitor in there. Can someone explain to
> > me why there are both AC and DC readings?

Think of AC as being 60 pulses of voltage a second ,each pulse goes positive then
negetive a fraction of second later...and on and on.
Rectifiers act the same as check valves in that they will only allow the voltage
to go in one direction, either positive or negative ...but....they are are still
passing voltage in pulses thats why your meter sees it as both AC DC.
A capacitor works the same as a flywheel in that it turns the power pulses into a
smoother flater wave...the bigger the cap...the flater the wave.