GE 6BA6 EF93 6F36 Sharp-Cutoff Pentode TESTED 100/120 NOS Strength

Zenith 6CB6 Sharp-Cutoff Pentode Vintage TV Radio Tube TESTED 100/120 NOS

RCA 12BA6 Sharp-Cutoff Pentode TESTED STRONG 110/120 Sencore NOS Strength

One Excellent GE 6AF11 Tube NOS NIB Strong Triode/Triode/Pentode B&K 606 Results

TWO Canadian GE JAN 6AJ7/6AC7 = CV149 Pentode, NOS. Tested 100%. (+1 free)

CBS 6K6GT Vacuum Tube Power Pentode Tested 100 NOS Strength

Emerson 6K6GT Vacuum Tube Power Pentode Tested 100 NOS Strength

Amperex 12AU6 Sharp-Cutoff Pentode TESTED STRONG 110/120 Sencore NOS HIFI