Once upon a time I made a number of tuners for inverted L antennas ~130' long, 1/4 wave @ 160M for loading on higher frequency bands, on 160 they were fed directly. Yeah, boat anchors with pi networks are very tolerant. SWR could be tuned to a flat match on 80, 40 and 20, beyond that adjustment got too hairy for accuracy. I have no idea what component values were, just used junk box parts and found the inductor taps by trial and error. The last one I built was breadboard, the parts found in a scrap yard were too big to fit in any available box and the thing could probably handle 50KW. SO much overkill but it would impress Doctor Frankenstein. (;->) I didn't use a counterpoise at any of my installations, yet the antenna was reasonably efficient BTW. I suppose that's because ground conductivity is reasonable in the NYC area of NJ.
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