On 5/10/2016 Jim Brown wrote:
> On Wed,5/4/2016 2:59 PM, Doug Powell wrote:
>> There is no such thing as a "noise free" switcher, only unaffected
>> equipment.
> As NY9H observed, it also depends on proximity to antennas.
<snip>
As I said when I pretty much started this thread, I got a bunch of
power supplies that were put in when my kitchen was redone and they
were noise bombs on 40m (my lot is 42x100, and I'm running a D-140
abot 30 ft straigt up from the supplies. That said, you can hear them
on the Tecsun 660 from a few hundred feet away with the antenna folded
on "local" attenuator setting
I JUST got in a supply via Amazon - also a 12v 5A supply, that was
advertised as UL Listed and EMI Free (right in the description). It
is marginally larger (about 3/16 longer, and about 1/8th wider and
thicker)
Even with the Tecsun right NEXT to the unit on local, I can't hear it
on or off!!
The BAD one is labeled:
Model GHD-1205N60S
and shows UL Listing and CSA, C E, TUV and a bunch of other markings
The NEW one is
http://www.amazon.com/Ledwholesalers-Power-Adapter-Output-3222-12v/dp/B007K511FG?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00
For ME, it WORKS, to the point I just ordered another 4, to replace
the other bad one in the kitchen, and do some other lighting
--
73 de KG2V - Charles Gallo
Quality Custom Machine-shop work for the radio amateur (sm)
www.baysidephoto.com
www.thegallos.com
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