GE 6JB6A Vacuum Tube Dual Side O Getter Serious Tube

Tightly Matched Pair 6CJ3/6DW4B/6CL3 GE NOS Vacuum Tubes, B&K 747B Tested

GE 6BS8 6BQ7A 6BZ7 TUBES MATCHED PAIR BP AMPLIFIER B&K 747B TESTED

GE 6AQ8 / ECC85 Vacuum Tube Tested New NOS On Calibrated B&K747B

(5) GE JAN-CG-6SQ7 Vintage Radio Audio VACUUM TUBES Tested 100% on a B&K 707

Tightly Matched Pair 6AL3/EY88 GE NOS Vacuum Tubes Great Britain B&K 747B Tested

(1) GE 6DJ8 Grey Plates top halo getter Vintage tube tested 100% on a B&K 707

(10) GE 6AU6A Tektronix labeled 157008200 Vintage VACUUM TUBES B&K 707 Tested