Hi Kevin,
I have confirmed that 2 of the 4 finals are bad. both are on one side of
the push pull. Both open base connection One has collector to emitter short.
The other open emitter.
I have not yet checked the drivers I might be able to test them without
removal. I have a friend trying to scare up a Mitrek
Aside from the transistors which I know are hard to find, and the cooked 12
ohm resistors, Is there something else I need to look for? We think it was
an intermittent Duplexer or antenna issue that caused it to blow. We have
since replaced the repeater, amp, and duplexer but a desense condition
has returned after a few weeks. The antenna is a 4 bay folded dipole on a 100
foot tower. this Antenna replaced a Stationmaster only about 3 years
ago. Tower is Rohn 45? guyed with Phillystrand.
Thanks for your help.
Marty
