[Boatanchors] Boatanchors Digest, Vol 126, Issue 30

[Stanley Adams via Boatanchors]

I am looking for a good set of 3-500z's.  I recently bought a SB-220 without the tubes and wonder if someone has some tubes to sell or trade.  If any one is building I have a good plate transformer out of a broadcast AM rig.  3100 v at 500 mils.

Thanks

Stan