MFA Magus preamp hum/buzzing sound
On Nov 5, 8:40 pm, "West" wrote:
No one suggested using a scope except for illustration. You are somewhat
clever in trying desperately to dig for insignificant and irrelevant issues
that you can exploit for your agenda. Measuring a DC power supply with a DVM
in the AC mode is standard procedure for a service tech to quickly observe
ac ripple on the power supply.
YIKES - please explain to the assembled multitude how AC will pass a
bridge rectifier such as to be measurable on an AC meter even with no
filtration at all. Chopped DC ain't nohow AC.
Peter Wieck
Wyncote, PA
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