Astrons were also heavily used in 2 way commercial market. Lots of good information at
http://www.repeater-builder.com/astron/astron-index.html If you don't take their specs as gospel and derate them a bit, they last forever (or at least till the next lightning strike). Even then the parts are easy to get and the supplies easy to fix. Mark n2qt ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html