{"product_id":"original-u-s-vietnam-war-hand-held-an-prt-4a-radio-transmitter-1","title":"Original U.S. Vietnam War Hand Held AN\/PRT-4A Radio Transmitter","description":"\u003cp\u003eOriginal 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 compartment as well as a retractable antenna.\u003c\/p\u003e\n\u003cp\u003eThis example is in service-used condition with some original markings still retained. It has serial number 05091 and is stenciled \u003cstrong\u003e013 \u003c\/strong\u003eon the back in white. In good condition, ready to be a part of your Vietnam War collection!\u003c\/p\u003e","brand":"Original Items","offers":[{"title":"Default Title","offer_id":42291486163013,"sku":"ONSV240CA074","price":95.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1524\/1342\/files\/ONSV240CA074__01.jpg?v=1737777094","url":"https:\/\/www.ima-usa.com\/products\/original-u-s-vietnam-war-hand-held-an-prt-4a-radio-transmitter-1","provider":"International Military Antiques","version":"1.0","type":"link"}