[Elecraft] something new, but not under the sun

[Mike Morrow]

There are a number of documents that describe the U.S. Army in Vietnam 
using the hand-crank-generator-powered, all vacuum tube, Morse only,
10-watt AN/GRC-109 HF station with a buried antenna.  Here's a description
of a long-wire antenna in bambo tubes, 18 inches below ground:

 http://books.google.com/books?id=PxFh1CQe5R4C&pg=PA53&dq=AN/GRC-109

(Pictures of this set are at http://www.ohio.edu/people/postr/bapix/GRC109.htm
 The last Army contract for this set was 1969.)

If it worked using a low power transmitter in such a critical application,
I suspect that it would be worth a try for ham hobby purposes.

Mike / KK5F