[Boatanchors] 1930s BC antenna?

[Jim Haynes]

I remember my grandparents had a BC-SW radio dating from the 1930s,
six-pin tubes like 76 and 78.  They had an outdoor wire antenna with
a transformer in it that used a shielded twisted pair feedline to the
radio.  What I don't remember is whether the transformer was in the
middle, making it a too-short dipole, or whether the transformer was
off the center.  Does anyone on the list know about this sort of thing?

Jim W6JVE

As a matter of unrelated trivia, they had a problem with interference
from a state police radio transmitter operating about 1700 KHz.  This
was solved by adding a wave trap.

jhhaynes at earthlink dot net