TSEC/HN-6(D-3) FACSIMILE TERMINAL EQUIPMENT
TSEC/ a complete piece of equipment.
H ancillary to crypto gear.
N designates signal conversion.
It is unclassified.
Known variants: D-1 and D-3
If anyone can provide additional info, please contact : jerry,email@example.com
|HN-6(D-1) photo courtesy National Cryptologic Museum. Click on image to enlarge.|
Contributors and Credits:
2) Nick England <navy.radio(at)gmail.com>