[OKDXA] Shunt-Fed Tower (cont.)

[Kim Elmore]

Well, I built a breadboard L-network to try out my guesstimates. I 
used a little DOS program I harvested form the web to design the 
network. By its calculations, I needed about 30 uH and about 480 pF. 
That matches what I have on hand, so I lashed it up.

Apparently, I do have the sign of the reactance correct, though the 
component values aren't yet right. I have a 500 pF vacuum variable 
for the capacitor and 50 uH coil for the inductor. I need to adjust 
the inductance, but I don't have one of those handy little coil taps 
-- the ones that have a 6-32 screw that is tightened to grab onto the 
coil turns.  Does anyone have one of those handy or know where they can be had?

Kim N5OP