

Tough Mil. Spec. triode amplifier tubes manufactured for the Armed Forces in the United States by renowned Ken-Rad. These tubes have 2 top caps for grid and anode, and standard 8 pin octal bases. They have black plates and bottom getters, are printed in white KEN-RAD MADE IN U.S.A. 7193 and coded C3.Some are boxed Hazeltine Service Corp. and some are boxed Zenith, all standard military beige boxes printed 7193.
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Tough Mil. Spec. triode amplifier tubes manufactured for the Armed Forces in the United States by renowned Ken-Rad. These tubes have 2 top caps for grid and anode, and standard 8 pin octal bases. They have black plates and bottom getters, are printed in white KEN-RAD MADE IN U.S.A. 7193 and coded C3.Some are boxed Hazeltine Service Corp. and some are boxed Zenith, all standard military beige boxes printed 7193.