We have a good selection of NOS 9-pin and octal tubes. These have been tested on a calibrated military testor and most are from our private stock.
MilSpec and Special Editions. Matched pairs. Singles available as well. Normally these are only available to customers.
Brands are TungSol, Sylvania, MilSpec, Gold Lion (real ones not reissue), Ken Rad, RCA, Raytheon, GE, Phillips Holland, Brimar, Philco, Cunningham, Siemens, Telefunken, Mullard.