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Joint-Army-Navy tube designations
My main interest is antique radios, including military. There was an old thread regarding JAN tube designations, saying JAN-CRC could be shown as JRC, JAN-CRP as JRP, JAN-COZ as JOZ, and so on. Does anyone here have, or can refer me to, an official document that explains this? I have seen...- haywireman
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