If we measure 5-6 volts on a typical meter on a 240 V line
it is more like 8-25 volts drop (3-11%) drop so far as a
capacitor input supply is concerned.
This is because the rectifiers only load the supply for a
fraction of each cycle. A typical 1500 watt amplifier with
good transformer on a reasonably stiff line draws about
45-50 amps peak current on each half- cycle with a 240V
line, but only about 12.5 amps average current.
73 Tom
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