• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Simple 45/2A3 schematic error?

I was perusing thru the JE Labs schematic sourcing parts when I came across the 6SL7 filiment off the Hammond 272 DX.
Correct me if I'm wrong but isn't that set-up wrong? JE has the heater filiment grounded off one side...how is that going to define ground?
Reading MJ on page 330...Morgan is adament that grounding one side of an AC filiment will induce hum....think about it...one side of a waveform shunted directly to ground....just as JE Labs has it in their schemo!
Morgan has either a humdinger or precision matched resisitors or a center tap so define ground.......not merely grounding one side................Anyone caught this?
________________________________________Rick............
 

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