I was playing around with the KAT100 a couple of nights ago and was leaving the K2/100 on tune for periods of 15 - 20 seconds at a time (20W) at intervals through several bands. After a few minutes, the whizzer fired up its engine, so if your average Tx power is 20W then you have maybe 5 mins before the little hovercraft starts up.
I note it blows air INTO the KPA, but there doesn't appear to be much by way of provision for the warmed air to get out, so I guess oscillators are going to move around quite a bit when the warm air circulates around and around. Maybe a nice, quiet ex-computer muffin fan sitting on top of the heatsink might be a better way of cooling the PA? 73 Dave L G3TJP _______________________________________________ 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