I wanted to love a 45A Astron but it was heavy and hummed. Sold for peanuts at a hamfest. Replaced by Jetstream JTPS32MAB. Probably same as MFJ-4230MV and many others. Small, quiet and cheap. Excellent regulation. If it dies, it is $80. Ignacy, NO9E -- Sent from: http://elecraft.365791.n2.nabble.com/