[Elecraft] Q7 failure in K2

N9AUP imjustgeorge at comcast.net
Sat Feb 18 19:02:30 EST 2012


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 out.  I
suppose my 35 foot linear loaded vertical dipole (with 6 foot capacitance
hats on on the far ends) is a pretty good static picker-upper.  Do you think
I could get away with a choke to ground, say 50 MH on each leg of the ladder
line on the antenna side of the tuner?  I guess I better do the math to
figure out what the impedance would be on each of the bands 40 thru 10
--although heaven only knows what the antenna impedance would be on each
band.  I guess I could always put the bleeder on the nominal 50 ohm side of
the tuner.

73,

George

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