Reply to "Whistle Waveform from Model ZW Transformer"

SteveHOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

@gunrunnerjohn posted:
Actually, the 1.5 ohm resistor is connected across the rectifier. That reduces the DC offset, but also boosts the voltage a few volts for to compensate for the voltage drop due to the current for the whistle tender motor.

John, thanks for providing the correct info about the resistor's function. Looking at the schematic, what you're saying about how the current flows through the compensating winding et. al. makes sense to me now. Thank you.

@PLCProf Thank you for the Copper Oxide information. I had apparently read some incorrect information elsewhere about the rectifier disc's composition.

I sure am glad you guys are here to keep us mortals straight. Thank you.

1/22/225:52 PM

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