http://www.zekfrivolous.com/goldstone/sub/APOLL021.jpg
Ar, matey, that be it. I will save a copy. Thanks!
I assume this is a recent photo. (Note the modern piece of test equipment at
the top.) The system is still in use after 40 years!
that "modern piece of test equipment" looks like a TEK TAS 475.
so it depends on your definition of "modern"
Mark