Ah, but you know us Humans are lousy at two things: 1) Thinking when we're distracted or under stress.
2) Paying attention to detail. IIRC, Eric reversed those cables on an early KPA100 at a Hamfest while talking with people and smoked the amp. That's when the blocking capacitor in the RF input was added. That's why we have speed limits that are always too low and stop signs where they don't seem to be needed - for the times we are distracted or not paying attention. And in aircraft, ships and other critical places, we have check lists, check lists and check lists. Ron AC7AC -----Original Message----- OK -- There are *dumb* things, and there are *stupid* things - and sometimes it is difficult to separate the two. So go write yourself a "dear dummy" letter and let it go at that. Yes, the two connectors for AUX RF and AUX 12V are the same, and if exchanged, you will have a DC short to ground - better to sacrifice a bit of PC trace than to encounter significant component damage. I don't see that exchanging the two connectors is a major hazard - the KPA100 (or KBT2) connector if built to the specified length is not long enough to interchange the connectors easily - yes, it is possible, but not easy. Check that the length of your AUX 12V leads are the correct length (4.5 inches) and that the input coax to the KPA100 is the correct length (also 4.5 inches) and it should be difficult to connect both cables to the K2 RF board with the cables reversed - while it is possible, it is not as easy as connecting them correctly. So, the bottom line is (IMHO) - fuse all DC sources at the rating for the load, and follow instructions. For those times when you do not do things correctly and S**T happens, just say "AH S**T" and go on with life as it may be. I used to work for IBM, and there was a desk plaque that had the word "THINK" on it. Well, that is what I am asking you to do - "THINK" - it will make a lot of difference. BTW, the publication "Think" is now the property of Case Institute of Technology (My Alma-mater), and is the official alumni magazine. 73, Don W3FPR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
