NOS GE 5-STAR ***** 6211 (Sub for ECC802S) MATCHED-PAIR D-GETTER TUBES 100% 1962
ECC802S SUBSTITUTE. 6211: Premium quality double triode, similar to the 6201 or 12AU7. Its gain factor is typically rated. between 25 and 30, while the 12AU7 / ECC802S has a gain factor of 20. 6211 = 12AU7 / 12AT7 SUB.