Heintz & Kaufman VT-127A early radar tube From the Gary Carter collection.

This page was last updated on: July 9, 2004

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Heintz & Kaufman VT-127A The Signal Corps VT-127A is a VHF triode of 100 watts' dissipation rating, designed just before WW II for the SCR- 268 radar used for the direction of antiaircraft guns. The radar transmitter used 16 of these tubes in a ring oscillator at 205 MHz. An exact figure for the peak pulse power output is unavailable, but 50-75 kW would be reasonable. The tube itself is a heavily modified, repackaged Eitel- McCullough 100TH. Tubes were made by Eimac, Heintz & Kaufman, Westinghouse, Sylvania, and Industrial & Commercial Electronics. Ludwell Sibley

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