Original U.S. Vietnam War Hand Held AN/PRT-4A Radio Transmitter U.S. Machine Guns two routes were opened from

two routes were opened from Cherbourg to the forward logistics base at Chartres

NOTE: Shipped UPS ORM-D Only

Many other components have the shortened serial number 75

We cannot test this unit and cannot guarantee functionality but from visual inspection its appears to be complete and undamaged

and both the tri-color and eagle shields were applied to the helmets

Original U.S. Vietnam War Hand Held AN/PRT-4A Radio Transmitter U.S. Machine Guns two routes were opened fromOriginal 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