Have you inquired at Cary, Justlisten to confirm that this is the case? I would also check with the tube seller, it may just be a typo.
Svetlana 572-3 tube---Still available?
does anyone know if there is a source to purchase these tubes?
I am thinking about buying an amp which uses this tube and have found no online store which have them.
I also heard that Svetlana no longer is making these
I am thinking about buying an amp which uses this tube and have found no online store which have them.
I also heard that Svetlana no longer is making these