I've had light dimmers provide a good bunch of gunk.  I forget if I was 
"testing" NB or DSP units with the one we had.  BTW not all light dimmers are 
bad news.  When I changed the one I reference above with a new 3-way dimmer 
switch, all the noise went away.  Package said it had a noise filter in and I 
thought, yeah sure.  Amazingly it really was quiet.

73,
Ron WD8SBB

--- On Sun, 2/6/11, [email protected] <[email protected]> wrote:

> From: [email protected] <[email protected]>
> Subject: [Drakelist] What is he best way to test the N-4B noise blanker?
> To: [email protected]
> Date: Sunday, February 6, 2011, 2:00 AM
> Gang,
> I need to test the noise blanker in my R-4C....Is there an
> easy way to test it?
> No ignition noise here, no electric fences....
> Tried the hair dryer, and an electric drill
> 73,
> Lee
> 
> 
> 
> 
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