[CQ-Contest] Switching Power Supplies

[K9MA]

On 11/12/2024 7:28 AM, Barry W2UP wrote:
> I just ordered the Samlex 1235P-M, which is a newer version of the 1235-M,

I've never detected any RFI from my 1235M, and it has worked flawlessly 
for about 15 years. It may be an old design, but I really think they got 
it right. It's quiet, reliable, small, and inexpensive. What more do we 
want? It's not like the latest generation of 2 nm (or whatever) 
semiconductor technology is going to improve a simple power supply.  
That said, there are a lot of other switching supplies out there which 
are NOT RFI quiet.

73,

-- 

Scott  K9MA

k9ma at sdellington.us