[Elecraft] K-Line Addition - DC Power Supply (Suggestion)

[Howard Hoyt]

Depending on cost, I'd bite, and it would be a nice addition to the K-line.  I have picked through several switchers, none of which were dead RF quiet.  I ended up defaulting to my Xantrex HPD 30-10 lab supply, which is a hybrid switching front-end/linear tracking output regulator.  It is dead RF quiet, but I am a bit scared to leave a supply that can output above 15 volts on my Elecraft.  I'd also like to free that supply back up for other uses.

Being linear regulators, the Astron supplies are probably pretty RF quiet, but for what they cost they are big and can be acoustically noisy (I have heard several buzzing transformers), not to mention containing antiquated circuitry.  LM723 regulators are not the quietest nor most stable linear reg ICs available these days, and have limited regulation bandwidth in stable implementations.  Considering these factors i have been reticent to buy one.

I bet Elecraft can outdo what is available in a pretty little matching package.

Howie - WA4PSC