[Elecraft] OT 20M Moving QRM (Video)

[David Christ]

Is there any way to easily determine if a wall wart is a SMPS?  Most probably are but are there any that are not?

David K0LUM


> On Mar 3, 2016, at 4:39 PM, Jim Brown <jim at audiosystemsgroup.com> wrote:
> 
> I'd guess that the average home has at least a couple of dozen switch-mode power supplies.
> 
> 73, Jim K9YC
> 
> On Thu,3/3/2016 12:18 PM, Dave Cole wrote:
>> Thank you Jim, I have always thought it might be, but I have never been
>> able to actually unplug one, and have it go away...  There is one in
>> the area, that covers several blocks my self and another ham have been
>> looking for for a few years now...
>> -- 
> 
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