Fall 2026 Militaria and Aviation Auction
Lot 410:
Description
WWII T-30 Throat Mic Pair: Western Electric & UM C. WWII US Army Signal Corps Throat Microphones – Western Electric T-30-Q, marked 0179077, and Universal Microphone Co. T-30, Inglewood, California, circa 1942-1945 Offered here is a pair of World War II carbon throat microphones representing two of the principal contractors that supplied the US Army Signal Corps during the conflict. Each is a standard-pattern T-30-series device, worn snugly against the larynx and secured by an elastic neckband, allowing aircrew and vehicle crews to communicate over intercom and radio circuits despite the surrounding roar of engines or battle noise. No individual recipient or unit assignment can be attributed to either example; their interest rests in their contract markings and universal wartime issue rather than any personal provenance, and no separate biography has been located for either piece. The T-30 throat microphone was ubiquitous across the US Army Air Forces and Armored Force during the Second World War, standard equipment for bomber and fighter crews communicating over aircraft intercom as well as for tank crews whose enclosed, deafening compartments made conventional microphones impractical. By transducing vibrations directly from the throat rather than relying on ambient sound pickup, the design solved a persistent wartime problem – achieving intelligible voice communication inside a B-17 turret, a fighter cockpit, or an armored hull. The two-pin plug allowed these units to interface directly with the switch boxes and jacks found in period aircraft and vehicle wiring harnesses, making the T-30 a small but essential link in Allied combat communications across both the European and Pacific theaters. The first example, stamped "Western Electric" and "T-30-Q" with the part number 0179077 impressed into the black rubber housing, retains its dual pickup housings joined by a flexible rubber bridge, a woven fabric neckband with snap-fastened leather tabs and adjustable buckle, a rubber-sheathed connecting cable, and its two-pin plug. The second, stamped with the winged "UM" device and marked "T-30 / UNIV. MIC. CO. / INGLEWOOD CALIF. / MADE IN U.S.A., " is similarly complete with its dual pickups, fabric neckband, snap fittings, connecting cable, and two-pin plug. Both microphones present in good vintage condition: the molded rubber pickup housings and cable insulation remain supple and largely intact without significant cracking, the two-pin plugs and snap fittings are sound, and the fabric neckbands show light age-toning, handling wear, and mild oxidation to their brass hardware consistent with genuine period use. A well-matched pair of scarce WWII throat microphones from two of the war’s principal Signal Corps contractors, tangible relics of the voice links that kept American airmen and tank crews in contact under fire.
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