Vintage Pair NOS NIB RCA 6BZ6 Vacuum Tubes Bitmatic Tested

(1) NOS Sylvania 6BZ6 Vintage Audio VACUUM TUBES B&K 707 &Hickok 539C Tested New

(1) NOS GE 6BZ6 Vintage Radio Audio VACUUM TUBE Hickok 539C Tested New

Vintage NOS NIB Pair RCA 8FQ7 8CG7 Vacuum Tubes Bitmatic Tested

Vintage Pair RCA & GE 12AL5 Vacuum Tubes NIB NOS *TESTED*

(3) NOS Sylvania 6BZ6 Vintage Audio VACUUM TUBES Hickok 539C Tested New

Pair of NIB NOS Matched Gm & Codes RCA 6BZ6 Vacuum Tubes (tested)

Vintage Pair NOS NIB Motorola RCA 6CL6 Tubes Bitmatic Tested