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USA: Radio Catalog for the radio manufacturer National Company; Cambridge & Malden (MA)

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Model	Year	Category	Tubes	Pictures			Forum	Coll.Pr.
TV-1731	1951 ?	Television	24 - 6AG5			16S
TV-1732	1951 ?	Television	24 - 6AG5			16S
TV-2029	1951 ?	Television	24 - 6AG5			16S
TV-2030	1951 ?	Television	24 - 6AG5			16S
TVB-2	1950 ??	Converter	1 - 6AK5	2				$
TVB-2B	1951 ??	Converter	1 - 6AK5	3				$
Two Seventy "Cosmic Blue" NC-270	1960–64	Amateur-R	9 - 6BZ6	17
Two Tube Tuner	1928 ?	Radio	2	1
Ultra High Frequency Converter HFC	1932–36 ?	Radio	3 - 36	2		1S
Ultra High Frequency Converter HFC(AC)	1932–36 ?	Radio	3 - 24	2		1S
Universal 100KC Crystal Calibrator XCU-27	1956 ?	Amateur-D	1 - 6AK6	4		3S
Universal Model SW-3 Model III	1940–45 ??	Radio	3 - 6J7	2		1S
URR-36	1950 ??	Commercial Re		2
URR-39 / R-651	1952 ??	Commercial Re		1
Variable Condenser Equicycle	1925	Radio part		1
Velvet B 3580B	1929–38 ?	Power-S	1 - 80	2
Velvetone	1929 ?	Ampl/Mixer	4 - 227	2
Velvet Vernier string drive tuning dial	1925 ??	Radio part		5
Velvet Vernier Dial A Dial	1924–45	Radio part		5
Velvet Vernier Dial B Dial	1924–50 ?	Radio part		6
Videometer	1950	Equipment	21	2
VLF Preselector LF-10	1964 ??	mod-past25	8	2		2S
VX-501	1965 ?	Amateur-D		3
Wellesley Speaker System	1956	Speaker-P		1
World Master NC-88	1953–56	Amateur-R	9 - 6BA6	14		1S
World Master NC-88SW	1953–56 ?	Amateur-R	9 - 6BA6
XCU-300	1955 ?	mod-past25	1 - 6AK6
XCU-303	1958 ?	mod-past25	2 - 12AT7			1S
XCU-400	1959 ?	mod-past25	1 - 6AU6
1-10A	1938 ??	Amateur-R	4 - 954	11		4S
1-10	1938 ?	Commercial Re	4 - 954	14		2S		$
3 tube Short Wave Kit	1928 ?	Radio	3 - 112A	1
6A47WTC	1950 ??	Radio	6 - 6SG7			8S
6A47WTR	1950 ??	Radio	6 - 6SG7			8S
6AFMT	1950 ??	Radio	6 - 6SG7			8S
6AMM	1950 ??	Radio	6 - 6SG7			8S
8 tubes SH	1932	Kit	8 - 36
245 Push-pull Amplifier	1930–32	Ampl/Mixer		1
650S	1950–64	Power-S
686	1939	Power-S	1 - 6X5
686S	1939	Power-S	1 - 6X5	3		1S
686SB	1939	Misc	1 - 6X5			1S
1286	1939	Power-S	1 - 0Z4
1286S	1939	Power-S	1 - 0Z4			1S
5856	1939 ?	Power-S	1 - 80
37530	1946 ??	Radio

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