Mike, Bud Wolfe is a good source: http://members.aol.com/cwwolfecom/
I've bought from him before and have been satisfied. Just FYI, I'm doing some testing of T44 and T83 Mitreks for both link and repeater service. In a temperature vs. time experiement I noted that even with the power pulled back to 25 Watts, the Mitrek PA temp gets up to 150 deg F. At 40 watts it is almost 170 degrees after a 6 minute key down. I have some Panaflow 46cfm fans and redid the test with the fan on the heat sink only and then directly blowing on the PA. The direct cool was the best temp curve with max temp at 122/128 25 vs 40 watts after 6 min key down and temp returns to baseline in 1 minute (the 40 watt without fan was still abt 108 deg after a 6 min cooldown). You may want to directly cool the Mitrek PA's by cutting a hole in the case cover and using one of the 80mm (~3 in) high cfm fans and venting. I have an Excel spreadsheet that I'll post next week with the rest of the data - I need to do the T83 temp/time runs. I'm setting up my repeaters as a separate RX and TX Mitrek bolted to a standard 19 in rack shelf, works quite nicely. My approach is to make the TX and RX field swappable to improve redundancy if I do loose the PA. Will post that info next week as well if folks are interested. John, N4SJW P.S. the Mitreks we've converted to 442.150/447.15 have RX sensitivity .25-.28 the MastrIIe that has the GE preamp hears at best .30uV. If you have a RF quiet site, can't beat the ears on the Mitreks. --- In [email protected], "Michael Tyler" <[EMAIL PROTECTED]> wrote: > Looking for a couple T34 drawer units to build a couple 440 Ham > repeaters....If you have any you want to sell , please let me > know....mike..wa8ywo Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
