Terry:
I don't know of an advantage, but a true DC is not
what I get from a 120VAC to 120VDC rectifier out of an
old TV (I am assuming it is pulsating DC, I don't know
how to test to be sure).
You would need an oscilloscope It shows voltage and time. Time is the
vertical lines voltage is horizontal.
AC out of the wall is a sine wave dc is a flat line rectified ac is
positive or negative pulses full wave has twice as many pulses as half wave
a capacitor will smooth out the pulses with capacitors of sufficient value
it will look indistinguishable from DC
Joseph Fritz
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