[R-1051]
SC-901
SC-901 and the 900 series as a whole were the prototypes designed around1961 by Stromberg Carlson.
They were typically installed in ICBM silos and you will see them in some of the photo collections on the web.
For example, that silo south of Tucson, Arizona, now a museum, still has them in place.
Presumably SC- means Stromberg Carlson.
Geoff
Not
to be a troublemaker, but going back up a ways on the previous page,
Collins was not involved in the R-1051. It was a Stromberg Carlson
design made initially for ICBM missile silos and carried SC-900 and
SC-901 designations. Later, General Dynamics took over and the
R-1051's are theirs, built usually by Bendix as a contractor. There
are some NATO ones built by Elmer in Italy.
The 1051
was not made to replace the R-390A, which was still in production
almost 20 years after the 1051 was introduced, although the Navy
stuck them in a bunch of positions at Skaggs Island where 390A's had
been. The decade frequency dial-up system sure isn't a band cruiser
but it's a great SSB receiver for fixed channel point-to-point use.
Which is what the military used it for. They are fixed mainly by
module swapping on board ship, but at the depot level, repairs to
modules are somewhat of a nightmare. And they weigh almost 100
pounds.
WB6NVH