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USA: Modelos del fabricante National Company; Cambridge & Malden (MA)

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Modelo	Año	Categoría	Válvulas	Fotos			Foro	Coll.Pr.
RBH-1 RBH	1942	Commercial Re	11 - 6K7			1S
RBH-2	1944 ?	Commercial Re		1
RBJ	1941 ?	Commercial Re	9 - 6D6	3
RBJ-1	1941 ??	Commercial Re	9 - 6D6
RBJ-2	1941 ??	Commercial Re	9 - 6D6
RBT	1939 ??	Commercial Re	4 - 954
RCP	1945	Commercial Re	12 - 6K7	1
Receiver NRCL	1945	Commercial Re		2
SCR-2	1944/45 ?	Commercial Re	9	1
SCR-4	1946 ?	Commercial Re	13	1
SCR-4A	1946 ?	Commercial Re
SW-58C (SW58C)	1933 ?	Commercial Re	5 - 58	1		1S
URR-36	1950 ??	Commercial Re		2
URR-39 / R-651	1952 ??	Commercial Re		1
1-10	1938 ?	Commercial Re	4 - 954	14		2S		$
RAO-8	1945 ??	Militar
RCL	1942 ??	Militar
NCX-3	1962	Amat TRX	18 - 12BA6	7		3S		$
NCX-5	1964	Amat TRX	19 - 6BZ6	9		3S		$
NCX-5 MKII	1965	Amat TRX	19 - 6BZ6	5		3S		$
NCX-200	1967 ?	Amat TRX	15 - 6BZ6	1		6S
NCX-500	1969	Amat TRX	16 - 6BZ6	2		5S
Transceiver TR 56 Type TRW [TRM]	1934/35	Amat TRX	2 - 30	4		1S
Exciter NTE-C	1938–41	Amateur-T		1
Exciter - Speech Amplifier NTE-A	1938–41	Amateur-T	10 - 6L6G	4		3S
Exciter - Speech Amplifier NTE-B	1938–41	Amateur-T	10 - 6L6G	4		1S
The National 600 Watt Transmitter NC-600	1939–41	Amateur-T	19 - 6L6	3		2S
Transmitter NTX-30	1938–41	Amateur-T	8 - 6L6	2		2S
Tuning Units Type BD-1 and BD-2 [1925]	1925	mod-pre26		2
Tuning Units Type BD-1, BD-2 and BD-3 [1926]	1926	mod-pre26		1
Class B Modulator NT 300 PCW	1939–41	Amateur-D	2 - 203Z	3		2S
Code Practice Oscillator CPO	1934	Amateur-D	1 - 30	3
Coil Cabinet NCC-10	1930–34 ??	Amateur-D		2
CRU	1947	Amateur-D	2 - 2AP1A	2
CRU-P	1947	Amateur-D	2 - 2AP1A	1
Final Amplifier NT 100 PCW	1939–41	Amateur-D	3 - 35T	1		2S
Frequency Oscillator VFO-62	1958	Amateur-D	1 - 6BH8	8		6S
Keyer Oscillator Unit	1945/45	Amateur-D		2
Modulator NSM	1938–41	Amateur-D	8 - 6C6	2		2S
Narrow-band FM Adapter NFM-07	1948/49	Amateur-D	2 - 6H6	1
Pi Network Coupler NT-APW	1939–41	Amateur-D		1
Relay Control Panel NT-RPW	1939–41	Amateur-D		1
Select-O-Ject SOJ	1949–52	Amateur-D	2 - 12AX7	1
Signal Meter S-80	1937/38	Amateur-D		2
Signal Meter SM-57	1948–51	Amateur-D		3		1S
Universal 100KC Crystal Calibrator XCU-27	1956 ?	Amateur-D	1 - 6AK6	4		3S
VX-501	1965 ?	Amateur-D		3
Crystal Calibrator XCU	1950 ?	mod-past25	1 - 6AK6
Crystal Calibrator XCU-109	1957–60	mod-past25	1 - 6AK6
Direction Finder RDF-66	1957 ?	mod-past25		2		1S
Narrow Band FM - Adaptor NFM-50	1950 ?	mod-past25	2 - 6SK7
Narrow Band FM Adaptor NFM-73	1947–51 ?	mod-past25
Narrow Band FM Adaptor NFM-83-50	1954–56 ??	mod-past25	2 - 6H6	1
Select-o-ject SOJ-3	1950 ??	mod-past25	2 - 12AX7			2S
VLF Preselector LF-10	1964 ??	mod-past25	8	2		2S
XCU-300	1955 ?	mod-past25	1 - 6AK6
XCU-303	1958 ?	mod-past25	2 - 12AT7			1S
XCU-400	1959 ?	mod-past25	1 - 6AU6
Duo-Range Charger	1927	Fuente-Al		2
High Voltage Supply NT 2000 PCW	1939–41	Fuente-Al	2 - 866	3		2S
Medium Voltage Supply NT 1200 PCW	1939–41	Fuente-Al	2 - 866	3		2S
NCX-D	1965 ?	Fuente-Al	2	3		1S
Power Supply GR-DPU	1932 ?	Fuente-Al	2 - 80
Power Supply GR-SPU	1932 ?	Fuente-Al	1 - 80	3
Power Supply NCX-A	1962 ??	Fuente-Al		7		1S
Power Supply NCX AC 500	1969	Fuente-Al				1S
Power Supply SPU-56	1939–41	Fuente-Al	1 - 80
Power Supply 697 [Late]	1947–49	Fuente-Al	1 - 5Y3GT	4
Power Supply 697	1939	Fuente-Al	1 - 80	10		1S		$
Power Supply 5800AB	1931 ?	Fuente-Al	1 - 80
Power Supply 5880-AB	1932 ?	Fuente-Al	1 - 80	3			1F
Power Supply 5880-AB-25	1932 ?	Fuente-Al	1 - 80	2
Power Supply 5880-AB-220	1932 ?	Fuente-Al	1 - 80	2
Power Supply 5880ABS	1932 ?	Fuente-Al	1 - 80	1
Power Supply 5880-AB-S25	1932 ?	Fuente-Al	1 - 80	2
Power Supply 5886-AB	1933 ?	Fuente-Al	1 - 80	7		1S
Power Supply 5887-AB	1933/34 ?	Fuente-Al	1 - 280
Power Supply 7180B	1928–34 ??	Fuente-Al	1 - UX280	2
Power Unit 5897-AB	1935	Fuente-Al	1 - 280	2
Rectifier Power Unit CNA-20125	1942	Fuente-Al		1
SPU686S	1939	Fuente-Al	1 - 6X5			1S
SPU-697	1939 ?	Fuente-Al	1 - 80
Velvet B 3580B	1929–38 ?	Fuente-Al	1 - 80	2
650S	1950–64	Fuente-Al
686	1939	Fuente-Al	1 - 6X5
686S	1939	Fuente-Al	1 - 6X5	3		1S
1286	1939	Fuente-Al	1 - 0Z4
1286S	1939	Fuente-Al	1 - 0Z4			1S
5856	1939 ?	Fuente-Al	1 - 80
BM Dial	1932–50 ??	Radio part		1
Dial E	1928–34 ?	Radio part		3
Dial F	1928–34 ?	Radio part		3
Dial H	1928–37 ?	Radio part		2
Dial N	1932–50 ?	Radio part		2
Dial R	1935–46 ?	Radio part		2
Dial VK	1932–35 ?	Radio part		2
FB-7 Series Coils	1933–36	Radio part		9
HRO Coils Consumer Models	1934–64	Radio part		8
HRO Receiver Tuning Mechanism Type PW	1935	Radio part		5
Neutralizing Condenser NC-75	1946 ??	Radio part		6

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