That's a clever idea. In my reading on L networks, I usually see a
series inductance and shunt capacitance at the output end, but the
antenna book says that a shunt L and series C can also be used. I
haven't seen this configuration anywhere. How is the TT model 238 wired
and how much capacitance is used? Is 400 pf enough?
Bob WB2VUF
Stuart Rohre wrote:
>
> A simple mod to the Ten Tec T kit ground tuner converts it to a transmatch
> of the L network type. It is normally a series variable L , fixed series C
> (switched values).
> A bit backwards to most L tuners, but it works. The mode insulates the mid
> junction of L and C and converts it to coax jack.
>
> Instead of being set up only to series tune a ground wire, you can L tune an
> antenna, or use a shorting plug and go back to ground tuner configuration.
> Just reverses some existing wiring to turn the circuit around.
> 73,
> Stuart K5KVH
|