Interesting discovery. According to, the flat coil "glo bee" Nelson plugs are no longer available. I posted about this elsewhere, Larry Driskill ( saw my post, and checked with Henry. Apparently it's not true - Henry can still supply flat-coils, has lots of plug bodies left - Larry sells them on his website, as a matter of fact.

Incidentally, the Russians rewire these plugs:

Expensive.. and they call them "suppositories".