{"product_id":"1935-u-s-navy-ru-4a-gf-3-aircraft-radio-equipment-manual-restricted-original","title":"1935 U.S. Navy RU-4A GF-3 Aircraft Radio Equipment Manual RESTRICTED Original","description":"\u003cp\u003e\u003cspan\u003eOriginal \u003c\/span\u003e\u003cspan\u003eU.S. Navy Bureau of Engineering instruction book\u003c\/span\u003e\u003cspan\u003e for \u003c\/span\u003e\u003cspan\u003eModel RU-4A Aircraft Radio Equipment\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan\u003eModel GF-3 Aircraft Radio Equipment\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe manual is marked \u003c\/span\u003e\u003cspan\u003e“RESTRICTED”\u003c\/span\u003e\u003cspan\u003e and was manufactured for the \u003c\/span\u003e\u003cspan\u003eU.S. Navy Department, Bureau of Engineering\u003c\/span\u003e\u003cspan\u003e under \u003c\/span\u003e\u003cspan\u003eContract Nos. 42945, dated June 29, 1935\u003c\/span\u003e\u003cspan\u003e, by \u003c\/span\u003e\u003cspan\u003eAircraft Radio Corporation, Boonton, New Jersey\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe title page lists:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eRU-4A Receiver:\u003c\/span\u003e\u003cspan\u003e 224–13,575 KC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eGF-3 Transmitter:\u003c\/span\u003e\u003cspan\u003e 3,000–4,525 KC and 6,000–9,050 KC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe restriction notice states that the manual was intended for Navy personnel whose duties involved the design, instruction, operation, and installation of radio and sound equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is a desirable \u003c\/span\u003e\u003cspan\u003epre-WWII naval aviation communications manual\u003c\/span\u003e\u003cspan\u003e, dating from a period when aircraft radio systems were becoming increasingly important aboard U.S. Navy aircraft. It should appeal to collectors of early military aviation, naval radio equipment, prewar electronics, aircraft communications gear, and original U.S. Navy technical publications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFREE SHIPPING\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e#7\u003c\/span\u003e\u003c\/p\u003e","brand":"Whiskey Rebellion Antiques","offers":[{"title":"Default Title","offer_id":43499457380429,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/9229\/8829\/files\/IMG-1464_2e122ce5-1a11-486d-91fd-e5d149d525f6.heic?v=1787399830","url":"https:\/\/whiskeyrebellionantiques.com\/products\/1935-u-s-navy-ru-4a-gf-3-aircraft-radio-equipment-manual-restricted-original","provider":"Whiskey Rebellion Antiques","version":"1.0","type":"link"}