[volt-nuts] Update on 720A

[Dan Kemppainen]

On 8/9/2017 12:00 PM, volt-nuts-request at febo.com wrote:

> I have trouble believing that the precision WW resistors
> in the oil bath did go low.  I wouldn't presume to argue
> that you didn't measure them right, but there has to be
> something other than their value drifting low. WW
> resistors usually go up and become erratic on their way
> to becoming open circuit.
>

That's a great observation. What possible causes are there?

Contamination in the oil? (Water, other fluids)

Loose/shorted turn of the resistor wire?

Not much else that could make resistance drop. If the unit suffered 
physical or environmental abuse, these may be possible explanations.

Dan