[TenTec] ARGOSY 2

[ROLAND HOWELL]

Hi All

Have a strange problem with my Argosy 2, the RX voltage is only 8.7volts 
on the mixer pcb, now here is the kicker, if i disconnect the RX/TX 
terminal 8 on the mixer pcb the RX voltage (blue) returns to the correct 
value.
There appears to be just 1v on the TX (yellow), i have removed all 
transistors and tested them, those that appeared to be low gain were 
changed, electrolytic's changed, just in case!.

If put just put the blue wire onto the board the RX springs into life.

Studying the circuit diagram of the IF/AF pcb checking the voltages i 
see that Q5 and Q6 are shown as PNP but the parts legend show them as 
being 2n5089, these are NPN types, i have 11v on collector and emitter, 
10.4v on base. have tested all trannies and they are within spec, all 
other components are with tolerances as well.

! stumped ex Rock Ape here

Can anybody confirm what Q5 and Q6 are?.

stay safe and well

73

Snowy G0HZE