Antonio I0JX wrote:

A few questions:

- is it really a 71-43?

Looking at the 1972 Amphenol catalogue, I am thinking it's a 71-4S

- does the mating plug bear the same identifier as the socket?

The plug would be a 71-4P.

- does any one know where I could find the mating plug?

Amphenol sold that line to WPI which sold it to Cooper Interconnect.

I think the 71 series connectors are gone, but I am pretty sure that
some of the 91 series connectors will interoperate with them. You could
try this one:

http://www.newark.com/cooper-interco...way/dp/39F3003

No, it's not a DIN standard plug, no matter what the Newark site says.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."