[Elecraft] Switching supplies and the K3

[Neill Taylor]

This discussion gives me the opportunity to correct an opinion that I 
earlier posted on this list.  Some long time ago I said I didn't much 
like the Watson W25-XM switched supply because of RF noises which 
always contrive to arrive on frequency at the worst possible 
moment.  I advised someone on this list to think twice before 
purchasing a Watson switched supply.

However I now have the tiny Watson Power Mite NF, a surprising and 
very thoughtful birthday gift from my wife.  It is much quieter in RF 
emissions and anyway has a front panel control to shift the switching 
frequency in case hash does arrive on the operating frequency at a 
bad moment.  The variable-speed fan is moderately quiet too.  This 
supply powers the K3 (or K2) just fine.

I would prefer to have a big linear PSU, of course, but my present 
operating conditions are much better served by this small and very 
light switcher.

73

Neill
F5VLD / G4HLX

K2/100 #2425
K3/100 #289