[TenTec] High speed washer hum/whine

Phil Sussman psussman at pactor.com
Wed Feb 3 11:45:19 PST 2010


My first thought, having a similar experience with a sewing machine, is
to determine the input source. In my case it was NOT the power line,
but rather DPI (Direct Pickup Interference) on an IF frequency. The
answer I found was to filter the source and I added CAPS to the 
sewing machine to eliminate the problem.

I'd look for the source at the washer and try to eliminate it there.

Good luck,

73 de Phil - N8PS

--------------

Quoting Kris Merschrod <Kris at merschrod.net>:

> Good afternoon all,
> 
> Here is a powersupply problem that needs a neat fix.
> 
> When my wife runs the highspeed washing machine, the whine and hum goes up 
> and down and also off and on when I am on my trusty Delta II.  The power 
> supply is the # 936.  Grounding all around.
> 
> When I run my old Drake, with AC-4 power supply - theer isn't a hum or 
> whine. (My gues would be the L-C filters on both neg and pos AC Lines.
> 
> Suggestions Please.
> 
> Kris KA2OIG
> Merschrod
> 123 Warren Road
> Ithaca, NY 14850
> www.merschrod.net 
> 
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