"Again, I don't know the 101, but I'd expect it to be considerably more
more sensitive than the run of the mill Hallicrafters radios such as the
S40A, which will start to work with a clip lead on the antenna terminal."

I did quite a bit of A/B listening between the two on Sunday. The
SX-71 seems 3-5db quieter. The fidelity on AM also seems better,
perhaps because it uses both sidebands? The Sx-101 is clearly superior
on SSB, although if you tweak and tune the Sx-71 does pretty well
there also. The 101 is far easier to discriminate adjacent channels
with in the crowded areas of the band and it has tons of gain left at
the same volume settings. However, I don't think the gain is useable
because the noise floor goes up with the gain settings. The 71 is
double conversion also, so either it must not be too shabby or I don't
have the 101 running right yet.