[Milsurplus] Re: ARC 65 tidbits

[Michael St. Angelo]

In the Re: ARC 65 tidbits, Mark wrote:

 >The UNIVAC ERA antenna coupler
> is a physically beautiful unit on the inside, gleaming silver varicoils, 
> copper
> vacuum variable, lots of 400 hz AC servo motors and synchros. 1950s
> electromech engineering at its best. No AN ARC anything, just ERA on the 
> coupler, what
> numbering system does that fit into?

I have an automatic antenna coupler which I've been told was used used with 
the ARC-65.
It's in a pressurized cylinder about 18 inches long and has the following 
designations:

Name: Antenna Coupler
Part Number: 7010340
Mfgr: Univac Sperry-Rand Corporation
Fedeal Stock Number: 5985-00927-0416cx
Type: 3254c1

There is a threaded connection for the antenna at one end.

The are two connectors at the other end. One is a RF "C" connector, labeled 
XMTR 1A5J.
The other is a 20 pin connector, labeled CONTROL 1A9J5.
There is a printed circuit board at this end with the designation 
"descriminator".
I guess this was used to detect the SWR or power as it was tuning.

Inside are various capacitors, including a motor driven Vacumn variable 
capacitor. A motor
driven inductor is also included. By the values of the capacitors and 
inductor, it looks like it
operates in the HF range.

I'd like to find any information, schematics or documentation about this 
tuner since I'd
like to use it in it's original state. I assume I can tune the capacitor and 
inductor
and monitor the SWR via the CONTROL connector.

Thanks in advance.

Mike N2MS