Gary I was sold on the idea of switched mode power supplies and mainly used one of the later model Samlex 1223 supplies with the factory fitted extra EMC components. You've guessed, it was fine for a while then I noticed a wandering "burble" on 80m and it was radiated from the PSU. Maybe the components deteriorated or something changed on the antenna, in any event it's no longer in the shack! I've gone back to a good old linear supply, it's a Racal branded one from Newmar Electronics in Newport Beach, CA. I bought it as new old stock (NOS) here in the UK (Racal were a UK military/commercial radio manufacturer), it's model 115-12-35 CD and rated for 13.8 V at 35 Amp continuous in temps to 85C ambient, it includes a crowbar, is designed with transmitters in mind and also has over temp shut down. A real power supply! I use it to supply both my K3 and an Icom IC910HX for VHF/UHF.
73 Dave, G4AON K3/100 #80 -------------------- I've been re-considering my power supply. I'm using a Heathkit PS which is a 20 amp linear supply. I just looked inside it and it's definitely showing the effects of age. It hasn't been used in quite a long time as I've used a TenTec supply with my Corsair & Omni since day one. <SNIP> _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
