[R-390] Classified Equipment

[glwebb at gundluth.org]

The only equipment during my Navy tours on Guam and the Canal Zone that I
remember
being classified were the encryption units for certain of our teletype
circuits.   I saw a lot
of R390A's.  I don't recall seeing a Top Secret, Secret, or even a
Confidential stamp
on any of them.  The  time period being from 1967 to 1970.

Gary L Webb NI9V, CBET, Clinical Engineering Specicalist