es as well.
If all bands acted the same, I'd be looking for a bias issue. Could there
be something wrong in the relays?
George
N9AUP
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For reasons of convenience, the resistors are mounted on the antenna side of
the tuner. Since I'm tuning from 3.5 mHz through 15 mHz into a roughly 10.5
meter linear loaded dipole, the impedance in some instances is quite high,
thus the large value of resistors.
regards,
George
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o evidence of a static build-up.
For whatever it's worth. . .
George
N9AUP
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OK Don,
I pulled one leg of D9 and saw 54K forward and infinite reverse on the DVM
(no KAT2) so I'm guessing that's ok for a Schottky diode. I just now
checked the tuner taps and the antenna was charged up pretty good. . .that's
amazing since there's hardly a breeze and it isn't below freezing ou
Thanks Don,
I've now pulled the remains of Q7 and also removed Q8. I checked the bias
and it is at .64 volts and present at both base pads. This is a K2/10, so
does that rule out the static antenna charge theory? I have a sort of crude
transistor check which consists of connecting ohm meter - t
hange
bands. There was a considerable static build-up on the antenna and I got a
small spark when I went to change a tap...and the Q7 let go at the same
time. That could have been a complete coincidence. . .but it still seems
strange. Any thoughts or experience regarding possible causes?
thanks
rse?
I do intend to eventually drive an outboard linear with my K2
Thanks,
George
N9AUP
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