A Franklin radiator looks like two self-supporting towers, one inverted on top
the other, fat ends touching.


Nope.

A Franklin is defined as a center-fed sectional, which is 180 degrees over 180
degrees. The base of the bottom section is connected to the ground system by an
impedance, usually a capacitor.

KSTP's Franklin is not a Frankin on account it is 179 degrees over 179 degrees.

A true Franklin has an efficiency of 510 mV/m/kW at 1 km.

KSTP's certainly equals that, although it is classified by the FCC as a
conventional sectional.

KDKA's sectional is just that.

As was WOAI's. 120 degrees over 120 degrees.

WHO's radiator isn't a Franklin, either, it is a "WHO Type", and is so
classified by the FCC. It is 300 degrees tall.

A true Franklin has the best horizontal field of any radiator.

A WHO-type radiator probably has the best anti-fading performance of any
radiator.