SYLVANIA 7N7 DUAL TRIODE AMPLIFIER VACUUM TUBE FOR OLD RADIOS BOXED TESTED.

2 National Union Type 85 Vacuum Tubes - 1930's Triode-Twin Diodes for AM Radios

Vintage RCA 6BH11 Vacuum Tube NOS – Compactron Triode/Dual Diode – Radio TV

1B5 /25S Marconi Radiotron Vacuum Radio Tube Dual Diode Triode Stcaus NOS (x1pc)

C-2B7 Vacuum Tube NOS Cunningham RCA Double Diode Triode Tested

NOS NU National Union type 75 Tested Dual-Diode Triode Radio Valve Vacuum Tube

14JG8 / 14GT8 HYTRON Noval Twin Diode Triode Radio Audio Vacuum Tube

TUNG-SOL 6SQ7GT / VT103 Twin Diode Triode Signal Detector AGC Audio Vacuum Tube