Jim Barnard wrote:

It is two-pin cord very similar to the old AC "cheater" cords used to when
servicing 60's radios and televisions.

There are three or so popular variants of these with different diameters
and pin spacing, but Ace Hardware carries most of them.

The Belden one with the rounded corners is no longer available (not even
from Volex) but one of the Ace ones will fit with a little surgery.
--scott

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