WWII USAAF T-30S Throat Microphone. New old stock with Instructions
The T-30 throat microphone was the most commonly used tank microphone and standard of the US Army Air Forces in WWII. This carbon microphone was strapped around the wearer's neck, with the two 1-inch round pickups made of black rubber contacting the wearer's throat near his Adam's apple. It is anchored around the wearer's neck by an elastic strap. These pickups transmitted sound vibrations as the wearer spoke, and allowed voices to be heard over the background tank and battle noises. The T-30 microphone had a small two-pronged PL-291 plug, which was connected to a JK-48 jack on a SW-141 push-to-talk switch.
It was produced in over twenty variations by different manufacturers, those being indicated by a suffix code letter to the type designation. This particular example is a T-30 S made by the Universal Microphone Company, Inglwood California
This is a new old stock item and is still boxed. Contents consist of the T-30S microphone, M-199 elastic neckband ,still in its un opened packet, and the original Instructions for use.
The box is however split in several places.
Its not often a complete new old stock item like this becomes available