QUAD ANNI 50 PIASTRA NERA D GETTER TUNG SOL JTL 5687 TUBI OLTRE IL 100%
1950s Tung sol. These are original, 1950s Tung Sol that were originally in a military depot. excellent tubes. Matched Quad NOS Testing. Heavy Duty Long Life Military Grade Construction Tubes. I'm interested in 20 or 30,".