[R-390] CU-714/SRA-22 coupler info?

[AI2Q Alex]

Hello R-390 list folks:

Last night I was given a gift of a CU-714/SRA-22 antenna coupler. This is a
motor-driven unit built by Collins, replete with Jennings USLS-465 vacuum
cap and a dual-bobbin inductor.

I logged onto "LOGSA" with Netscape and searched for the above numbers, to
no avail (is this a Navy item?), and was wondering if anyone can point me to
a manual, or even a schematic for this unit.

Thanks in advance for any assistance.

== AI2Q, Alex in Maine    .-.-.