Reference data for radio engineers Reference data for radio engineers radio communication series Radio direction finders / by Donald S. Bond research paper improved radio sonde and its performance / by Harry Diamond [et al.] Electronics dictionary : an illustrated glossary of over 6000 terms used in radio, television, industrial electronics, communications, facsimile, sound recording, etc High frequency thermionic tubes / A.F. Harvey ; with forew. by E.B. Moullin 1948 radio catalog / French-van Breems der zweite weltkrieg Zweite Weltkrieg : 2. Teil 1940-1945 der zweite weltkrieg Zweite Weltkrieg : 1. Teil 1939-1940 der zweite weltkrieg Zweite Weltkrieg : 1. Teil 1939-1940 Bericht van de Tweede Wereldoorlog in authentiek geluid Bericht van de Tweede Wereldoorlog in authentiek geluid
