Cetron

Cetron / United / National matched pair of genuine NOS (New Old Stock) 810 high-power transmitting triode vacuum tubes in Original Boxes Tested   **All the tubes I sell are tested and come with...

Cetron JAN 811A Vacuum Tube, NOS, Date Code 8235, Tested Full RF Output, USA Made Military Spec  I tested this tube in an Ameritron 811 Amplifier and it is full emission.  This is the only...

Cetron matched pair of genuine NOS (New Old Stock) 810 high-power transmitting triode vacuum tubes in Original Boxes Tested   **All the tubes I sell are tested and come with a money back,...

Cetron matched pair of genuine NOS JAN 810 high-power transmitting triode vacuum tubes Tested   **All the tubes I sell are tested and come with a money back, satisfaction...

This Cetron Pair (2) of 4B32 Rectifier Tubes, are used in the  Collins KW-1 and Johnson KW Desk Amplifier. They are NEW in the Boxes and Replace the Mercury Vapor 872As which can cause problems...

RCA Radiotron 811 Vacuum Tube Y5 date code (1971) Used, full Emission  I tested this tube in an Ameritron 811 Amplifier and it is full emission.  This is the only RCA 811 I have and there...