columbus-and-courtenay-radios 电路原理图.pdf
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1、Columbus and Courtenay radios Produced by W. Marks Ltd (1931-1934) and Radio Corporation of New Zealand Ltd (1934-1956). This list was compiled by John Stokes during his research into the history of New Zealand radio. Any feedback, updates and additional information is always appreciated. Courtenay
2、1931-1935 Model Year Valves Remarks 5A 1932 5 Autodyne superhet 5B 1932 5 Autodyne superhet 5B1 1935 5 Battery superhet 5BS 1935 5 Battery superhet 5C 1933 5 Autodyne superhet 5C 1933 6 Improved with separate oscillator 5D 1935 5 Stella brand only 5DC 1934 4 DC mains (eg Auckland Central) superhet 5
3、H 1934 5 Troubadour brand only 5V 1934 5 Radioplayer brand only 6 1931 3 TRF with separate speaker 6A 1934 6 Stella brand only 6BS 1933 6 Battery superhet 6DC 1934 5 DC mains (eg Auckland Central) superhet 6V 1934 6 Troubadour brand only 7A 1932 7 TRF with diode detector 7BD 1935 7 Dual wave, batter
4、y set 7BS 1934 7 Battery superhet 7B1 1935 7 Battery set (465 kHz IF) 8 1935 6 Dual wave 8A 1932? 10 1935 2 SW Converter 11 1935 7 DW with two IF stages 15 1935 5 66 1932 4 TRF, mantle set 103 1933 5 same as 5C 104 1934 5 like 5C but with improved volume control 105 1934 5 Has AVC 106 1931 6 TRF, co
5、nsole RadioFans.CN 106 1933 6 Superhet with AVC 107 1934 7 Has NSC, two arc dials 108 1934 6 First DW, first aero dial 109 1934 5 same as 108 140 1933 7 separate oscillator 205 1933 5 same as 105 206 1931 6 TRF, console 207 1933 6 same as 107 306 1931 6 TRF, console radiogram Columbus & Courtenay br
6、ands Model Year Valves Remarks 4 1952 4 Alarm clock model 5A 1951 5 1953 5 5B 1953 5 5B6 1936 5 Battery set 6 1946 5 Columbus brand only MC7 1948 5 Car radio MC8 1951 Car radio 7B6 1936 7 DW, battery set 7BV 1936 7 DW, Vibrator set 10 1935 2 SW converter 12 1941 5 12A 1941 5 14 1947-48 5 14R 1945-48
7、 5 uses oscillator bias 15 1936 5 17 1946-47 5 Courtenay brand only 17 1948-49 5 Courtenay brand only (uses 6SA7) 18 1936 6 DW 18DC 1936 5 DC mains version 19 1951 5 Table-gram 19N 1952 5 Table-gram 19P 1952 5 Table-gram RadioFans.CN 21 1936 5 DW metal valves 22 1940 5 O22 1941 5 23 ? 24 1937 5 24E
8、1937 5+ has magic eye tuning indicator 25 1937 5 DW 25E 1937 5+ has magic eye tuning indicator 26N 1952 5 26P 1954 5 has PM speaker 27 1948 5 27M 1951 5 Miniature valves 28 1951 5 DW vibrator set 31 1936 7 DW 32 1948 6 O32 1950 6 DW 33 1936 8 AW metal valves 33G32 1936 8 AW has 32 volt motor generat
9、or 34 1947 5+ AW has magic eye tuning indicator 35 1938 5+ DW has magic eye tuning indicator 35 1939 5+ DW with Octal valves 38 1937 6+ AW uses spiral dial 39 1937 5 DW 40 1939 5 same as 49 40S 1939 5 42 1942 5 vibrator set 43 1937 8+ AW metal valves 44 1948 7+ semi-bandspread 45 1954 5 the last Cou
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