[TenTec] Argonaut V 516

[John Hodge]

Good morning/afternoon/evening,

I have an Argonaut V 516 with a noisy receive front end. Without an 
antenna connected, the S-meter shows a varying signal level between S1 
and S3, on all bands.

I suspect one of the RF preamp FETs but because the RF board is a 
plug-in and I don't have extenders it's nigh impossible to carry out 
live checks. Had the board out, removed the tin shield and cold checks 
on the 3 FETs show a measureable discrepancy in resistance readings on 
one of the FETs. All 3 circuits look the same in the manual.

Does anyone have any experience working on this model? Anyone know what 
the SMT FETs are? Any help  would be appreciated.

73, John G8CCD