>>Just thought I might clarify, the post was with regards to audio amps but >>thought it best to mention I *think* RF power amps like to see a load or >>they can fail. >It depends which kind of RF amp. Medium power and up certainly. Low power >usually not unless it's really badly built. When I was dealing with VHF power amps we were using transistors rated for 25W output (for a pair in push-pull) and they were rated for infinite VSWR on motor vehicle supplies (13.6V). -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body