I promised a picture...

> On May 9, 2019, at 4:33 PM, Mac Doktor <themacdok...@gmail.com> wrote:
> 
> I have a Systron Donner frequency counter with an integral cord that's 120V 
> only. Some idiot chopped the ground pin off. With it plugged in and turned 
> OFF I can feel a tingle when I touch the case. I measure 54V RMS from the 
> case to ground.
> 
> I asked a friend who's an EE about it and he told me that the EMI filtering 
> contains resistors from both hot and neutral to ground. In his words, "Put a 
> damn grounded plug on it!" I installed a new grounded plug and the tingle is 
> gone. Zero volts from case to ground.
> 
> I'll post some pictures of it later.

And here it is:




Up next: video of the counter in operation.


Terry Bowman, KA4HJH
"The Mac Doctor"

"If only you could see what I've seen with your eyes."—Roy Batty, Blade Runner

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