[Milsurplus] Ferrite cores and 16Khz reception

[C. Whitaker]

de WB2CPN
The one I used must have been an NM-10 maybe.
Year was 1954 - 56.  It was in a nice case with
hinges and a snap lock.  Not rack mount.  Power
supply sat on floor.   I never even thought I'd actually
see any info on that setup I used, but ghosts from the
past really do exist. 
73  Clete