RCA 6293 (heavy duty variant of the 6146 series) Used Vacuum Tube Tested 100 %

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 Tube has been tested on a Dyna-Quick Model 700 Dynamic Mutual Conductance Tube Tester. This tube measures 100 % Grid Emission.

  Overview of the 6293 / 6146 Vacuum TubeThe 6293 is a rugged beam power technically a beam power tube designed for high-power pulse modulator applications in military radar, RF transmitters, and industrial equipment from the 1950s–1960s. It's an uprated variant of the 6146 series, featuring a heavier plate construction for handling up to 1 kW pulse input at 3 kV, with an octal base, and internal shielding.