Wayne Parham Messages: 18786 Registered: January 2001
Illuminati (33rd Degree)
I think those sockets are available, and can be replaced with off-the-shelf parts. So you might call one of the tube amp parts suppliers like TubesForAmps.com or Antique Electronic Supply. Tell 'em what you have and ask if they have replacement sockets.
But we have some real tube amp heavy-hitters on this forum that probably will have better info for you. Might be worth waiting 'til they see your post and chime in.