I have used several Alinco switchers and Astron switchers in both HF and
VHF/UHF weak signal applications over the last few years. With these
supplies designed and manufactured in the last 5 years or less, no problems
or radiation concerns have been observed. Earlier designed supplies and
inexpensive (cost down) current designs will produce DC but may likely have
lots of nasty other stuff!
As to the RS model, I have no specific experience. However, with their
generous return policy, get one, hook it up and listen. If you like it,
keep it, if it generates noise take it back.
73
Bob, K4TAX
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