Original U.S. Vietnam War Hand Held AN/PRT-4A Radio Transmitter Military Maps Upper Observation Window is clear

Upper Observation Window is clear and undamaged

was assigned to the New Jersey National Guard

The inside of the jacket is not named and does not have a laundry number

It is marked M're d'Armes / S't Étienne on the right side of the frame and features matching serial number N 8689 on the barrel

A) factory in Small Heath

Original U.S. Vietnam War Hand Held AN/PRT-4A Radio Transmitter Military Maps Upper Observation Window is clearOriginal Items: Only One Available. Introduced in 1965, the PRT 4A is a 2 channel crystal controlled handheld FM transmitter, for use with helmet receivers as part of a set. The A version transmits a 150 Hz tone that opens the squelch on receivers so equipped, such as the VRC 12 series, the PRR 9 (XE 9),and PRC 25 77. Power output is 450mW on Channel 1 and 50 250mW on Channel 2. The radio has an empty skeleton detachable bottom BA 399 U battery