New, old stock Russian 6C33C-B triode vacuum tube; tested with the Amplitrex AT1000 Electron Tube Test System. Price is per tube. If desired, pairs, quads, etc., will be matched as closely as possible using the data generated by the AT1000. The characteristics of this particular tube are known to vary widely, and proper testing is mandatory for attempting to match this particular tube.
For $15.00/tube, LAMM, BAT, etc. owners are welcome to send 6C33C and 6C33C-Bs that they would like replacements matched to, and your original tubes will be returned with the replacements. $15.00/tube for testing service applies to other tubes as well. Individual tubes will include test documentation. Buyer will pays shipping. Serious buyers only please. Thank you for looking!