--- In [email protected], George Henry <[EMAIL PROTECTED]> wrote: > > And the Mitrek is just about the easiest radio to convert... snip two diodes, jumper your channel elements hot full-time, disable the T/R relay & add a 2nd antenna connector, controller of your choice, and duplexer. And already in a nice, RF-tight enclosure, to boot! > > I picked up a 55-watter on E-Bay recently for $10 plus $10 shipping! I don't see very many MASTR II's pop up on E-Bay, though.
Yup Mitreks are great, but please don't imply that a 55-watter will last in repeater service at anywhere near 50 watts. (They are actually spec'ed at 50 watts, but mine did 80+ full tilt). The 30 watt version is a better radio for repeater service since all solid state transmitters are very inefficient when run below their designed output. A 30 watt Mitrek running at 15 watts will probably last forever, but a 50 watt Mitrek running at 20 watts gets way too hot for my tastes. It would probably be ok with a fan, but I really didn't want a fan for numerous reasons. Since I'm using mine to drive an Micor PA I bypassed the finals and driver transistor and got 10 watts out with about 2 amps in. In that configuration it just barely gets warm. Since the Micor amp only requires about a watt drive I have the power output turned all the way down. 73's Skip WB6YMH
