George,
I tried an L-network and it will match your antenna on 80 and 160 meters. The
L is configured as a series inductor at the source end and a shunt capacitor
at the load end.
Values to match your antenna:
80 meters: 20 uH and 30 pF
160 meters: 34 uH and 580 pF
The antenna input Z:
80 meters: 92 -j600 ohms
160 meters: 20 +j240 ohms
Component stresses at 1500 watts:
80 meters:
capacitor: 3.4 kV peak, 2.3 amps RMS
inductor: 5.5 amps RMS
160 meters
capacitor: 3kV peak, 14 amps RMS
inductor: 5 amps RMS
So it looks like a rotary inductor good for 5 amps will do it along with a
capacitor good for 5 kV and 15 amps.
An alternative is to build two fixed component matching networks and switch
them in with relays. Or, it might be possible to build a non-switched
compromise network and finish the matching with a tuner at the shack. If you
are
interested in any of these I can look into it.
Dave WX7G
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