tubedata.altanatubes.com.br€¦ · RCA INTERCHANGEABILITY DIRECTORY OF FOREIGN vs U.S.A....
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tubedata.altanatubes.com.br€¦ · RCA INTERCHANGEABILITY DIRECTORY OF FOREIGN vs U.S.A. RECEIVING-TYPE ELECTRON TUBES—ICE-197 (8%" x pages. Covers approximately 450 foreign "tube