IIRC we sold a bunch of 1666Bs to the US Navy in
YUK/something
nomenclature).
1666s are known as AN/UYK-64.
Nitpick: the Rolm 1600s are not really avionics machines, although
certainly quite a lot were put in aircraft. The military put them on
land and ship installations, thus the "U". If they were primarily for
aircraft installations, they would have been "AN/A**" and not
"AN/U**"
(and also not so freaking heavy!).
--
Will