[TenTec] Jupiter has low output on 20 meters

Roger Cook zrdc28r at aol.com
Fri Oct 1 13:02:12 EDT 2021

I replaced the two fl2 and fl3 filters on the jupiter blue screen because it had zero output on all bands.

I first replaced fl2 with no success then fl3 and it started transmitting. I set the bias to q3 &4 at about .7 volts 

It has the later version FET for q1 and q2 so I could not find a way to bias those. The jupiter has about 100 watts

on all bands except 20 meters where it has only about 65 to 70 watts, I have used it for about 3 weeks and it works

fine except for 20 meters. I have looked at schematic many times and cannot figure out my problem on 20 meters.

If anyone has a solution would you please send me a suggestion, I love the jupiter and would like to repair it.


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