[Boatanchors] Mailing list for discussion of Watkins-Johnson rx?

[shoppa_boatanchors at trailing-edge.com]

Is there a mailing list (maybe QTH.NET) appropriate for discussions
of Watkins-Johnson HF receivers of the 70's/80's?

Google found some really good introductory information, and
a "premium-rx" mailing list which is invitation only (and would
seem to exclude me since I don't actually own one yet!)

But there are lots of them surplus (especially in the Ft Meade
area, funny about that) in this area and I'm interested in asking
some questions about what I see.

Tim.