[Milsurplus] VLF/ELF submarine comms

[Marty Reynolds]

Kinda remarkable that no one brought up the Alexanderson alternator
that ran thru end of WW2 @ Haiku, Hawaii.

It sat mebbe 400' down in a volcano caldero & had it's vertical
suspended from wires across rim.  These doubled as a top load

Ran quarter megawatt

Radiation resistanc of 400 fotter @ 16 kc under an ohm.  Reactance so
high that maybe a megavolt key-down.  Fable goes that all your hair
stood on end when near 'helix house.'  (loading coil)

Easy copy in submerged sub* in Tokyo bay

It's why there were RBAs & RAKs

   Marty aka aa4rm

*just visited WW2 sub memorial in Groton, CT