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Radio Make and Model: northstar / galaxy 44v
PCB Number: EPT360014B
PLL Number:
Test gear available: watt/swr meter, multimeter, external freq counter
Symptoms: no tx power

What is working: audio through pa, can hear on close radio

What has been tried: changed driver 2sc2166

Did it suddenly happen ?: yes
Anything else that may be of help?:
TR43 final 2sc2312
b....c.....e
0 / 3.8 / 0 rx
-7 / 3.8 / .15 tx

tr44 driver 2sc2166
b.....c.....e
0 / 3.8 / 0 rx
0 / 3.3 / .15 tx

tr45 predriver
b.....c......e
0 / 0 / 0 rx
.80 / 8.3 / 1.2 tx

What's the voltages on SSB, as you have not said what mode the voltages are for you've given.
The Base voltage for the driver and final on SSB should be no more than 0.7v and the collector voltage about 13v.

The radio is am/fm only, tested on am