Tubes Vacuum

This Tube has been tested on a Dyna-Quick Model 700 Dynamic Mutual Conductance Tube Tester. All NOS tubes I sell measure 100 % Grid Emission.  The tube in the photograph is the actual Tube in this listing...

This Tube has been tested on a Dyna-Quick Model 700 Dynamic Mutual Conductance Tube Tester. This tube measures 100 % Grid Emission.  The tube in the photograph is the actual Tube in this listing...

This Tube has been tested on a Dyna-Quick Model 700 Dynamic Mutual Conductance Tube Tester. This tube measures 100 % Grid Emission.  The tube in the photograph is the actual Tube in this listing...

This Tube has been tested on a Dyna-Quick Model 700 Dynamic Mutual Conductance Tube Tester. This tube measures 100 % Grid Emission.  The tube in the photograph is the actual Tube in this listing...

This Tube has been tested on a Dyna-Quick Model 700 Dynamic Mutual Conductance Tube Tester. This tube measures 100 % Grid Emission.  The tube in the photograph is the actual Tube in this listing...

NOTE: I only have a small number of these New old Stock 6293 / 6146 Tubes. At some point the original boxes got damp and were not in good shape. The tubes are in new condition. Each tube is in a generic box. This Tube has been tested on a Dyna-Quick...

NOTE: I only have a small number of these  6293 / 6146 Tubes. At some point the original boxes got damp and were not in good shape. The tubes have very slight pitting on the metal  portion of the tube so I am selling them at a (used) price This...

RCA 6JB6A RL Drake Radios, NOS Tested & Guaranteed #1  6JB6 and 6JB6A tubes are interchangeable This 6JB6 / 6JB6A tube is in excellent condition and appear to be NOS and tests the same. This tube and all others, has been tested on a B&K...

RCA 6JB6A Used for RL Drake Radios, Tested & Guaranteed  6JB6 and 6JB6A tubes are interchangeable This 6JB6 / 6JB6A tube is in excellent condition and appear to be NOS and tests the same. This tube and all others, has been tested on a B&K...

RCA 6JB6A Used for RL Drake Radios, Tested & Guaranteed  6JB6 and 6JB6A tubes are interchangeable This 6JB6 / 6JB6A tube is in excellent condition and appear to be NOS and tests the same. This tube and all others, has been tested on a B&K...

RCA 6LQ6 / 6JE6C Amplifier Tube for HF Amplifiers Tested & Guaranteed NOS  This tube  and all others, has been tested on a B&K Dynaquick 700 Tube tester. It shows grid full emission. This tube appears to be new in the box. The 6LQ6 is a...

RCA 6LQ6 / 6JE6C Used Amplifier Tube for HF Amplifiers Tested & Guaranteed  This tube  and all others, has been tested on a B&K Dynaquick 700 Tube tester. It shows grid full emission.   The 6LQ6 is a vintage beam power pentode...