Published in electronics – June 1946 on the Cover

Tubie – Vacuum Tube Warrior

In June of 1946 Dr. Harold Zahl’s VT-158 was the cover tube of electronics.

   The photo description…

  CIRCUIT UNDER GLASS – Grid lines and plate lines are within the quadruple-triode VT-158,
used in the TPS-3 radar transmitter. Final assembly at Evans Signal Laboratory.

CIRCUIT UNDER GLASS – Grid lines and plate lines are within the quadruple-triode VT-158,
used in the TPS-3 radar transmitter. Final assembly at Evans Signal Laboratory. Page created January 18, 2004