[aprssig] CFL Bulbs and Shack backup power ;-)

david vanhorn kc6ete at gmail.com
Fri Jun 3 01:37:50 EDT 2011

> That aligns with the new knowledge I got at Dayton... All of these LED
> bulbs
> are designed with universal switching power supplies built-in (100 to
> 240VAC) and we all know what that means... a SWITCHING power supply...
> think
> RFI generator.
> And I can imagine there is not a lot of attention paid to making them as
> quiet as a HAM would want.
Well.. I think maybe you paint with too broad a brush.  That may not be
their primary goal, but there are quiet brands.
For our products, (not the same, but similar) I'm used to hearing "is that
thing on?"
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