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USA: Modelos del fabricante General Radio Company; Cambridge (MA)

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Modelo	Año	Categoría	Válvulas	Fotos			Foro	Coll.Pr.
Octave Noise Band Analyzer 1558-BP	1959 ??	Equipment		2		6S
Oscillator 320	1930 ??	Equipment	1 - 12A	1		1S
Oscillator 360-A	1930 ??	Equipment	1 - 112A			1S
Oscillator 508-A	1931	Equipment	2 - UX245	6		3S
Oscillator 608-A	1938 ??	Equipment	4 - 6F5G	5		8S
Oscillator 1208-B	1959–65	Equipment	1 - 2C43	5
Output Meter Type 483-F	1948 ?	Equipment		3
Output Meter 483	1930	Equipment		2
Output Meter 583-A	1945 ??	Equipment		6		5S
Output Power Meter 783A	1942	Equipment		1		7S
Oxide Rectifier 492A	1935 ??	Fuente-Al		4
Phantom Antenna A 50	1919 ??	Equipment
Power Amplifier Type 272	1923	Ampl/Mixer	2	1
Power Amplifier and Plate Supply Type 400	1929	Fuente-Al	2 - UX213	1		4S
Power Amplifier and Plate Supply Type 420	1929	Ampl/Mixer	2 - UX213
Power Supply Type 1269-A	1962 ??	Fuente-Al	1 - 6X4	1		6S
Power Supply 1261-A	1946 ?	Fuente-Al	1 - 6H6	6
Power Supply 1262-B	1968	Equipment		5		1S	1F
Precision Capacitor 722-D	1955 ??	Equipment		2		2S		$
Precision Capacitor 722MEQ	1956 ?	Equipment		3
Precision Condenser 2225	1935 ??	Equipment
Precision Decade Resistor 1433P	1970 ??	Equipment		1
Precision RCL Digibridge GR1689M	1984 ??	Equipment		5
Precision Sound Level Meter 1933	1971 ?	Equipment		4		10S
Precision Sound Level Meter 1981	1971 ??	Equipment
Precision Wavemeter 724-A	1948 ??	Equipment	1 - 1G4G	5
Precision Wavemeter 724-B	1950 ??	Equipment		9
Pulse Generator 1217-B	1962	Equipment		1		8S
Random Noise Generator 1390-A	1960 ??	Equipment		4		1S
Random Noise Generator 1390-B	1963 ?	Equipment	3 - 6D4	4		24S
Rectifier Transformer 365	1926	Radio part		2
Rectifier - Type Wavemeter 419-A	1931	Equipment	1 - 230	1		9S
Rectron "B" Eliminator 390	1930 ??	Fuente-Al	2 - UX213			1S
Regulated Power Supply 1201-B	1959–65	Fuente-Al	3 - 12AT7	1		7S
Resistor 500	1931	Radio part		2		2S
R-F Bridge 1606-A	1957 ??	Equipment		6		8S
RF Vacuum-Tube Voltmeter 1802A	1949 ??	Equipment	1 - 1R5	1		1S
Rheostat 301	1924	Radio part		1
RLC Digibridge 1659	1980 ??	Equipment		4		8S
Scaler (Frequenz Teiler) 1157-B	1969	Equipment		1		17S
Signal generator 605-A [All Versions]	1936	Equipment	5 - 76	1		23S
Signal generator 605-B [All Versions]	1938 ?	Equipment	5 - 76	19		1S		$
Sound Analyzer 760-A	1946–48	Equipment	4 - 1L4	8		2S
Sound Level Meter 759-B	1946 ??	Equipment	4 - 1N5GT	5		3S
Sound-Level Meter 1551-A	1950–56 ??	Equipment		1				$
Sound-Level Meter 1551-B	1959 ?	Equipment	6 - CK512AX	2		8S		$
Sound-Level Meter 1551-C	1968	Equipment	6 - CK512AX	15		11S
Sound-Level Meter 1565-A	1960 ??	Equipment		4		11S
Sound-Survey Meter 1555-A	1952	Equipment		7
Standard Capacitor 1401-D	1955 ??	Equipment		1
Standard Capacitor 1409F	1965 ?	Equipment		1		1S
Standard Capacitor 1409K	1960 ??	Equipment		1		1S
Standard Capacitor 1409-M	1955 ??	Equipment		1		1S
Standard Capacitor 1409-T	1965 ?	Equipment		3		1S
Standard Inductor 1481-K	1951 ?	Equipment		3
Standard Signal Generator Type 805-A	1942	Equipment	10 - 1614	2
Standard Signal Generator Type 805-G	1947 ?	Equipment	10 - 1614	1
Standard Signal Generator Type 1021-A, 1021-AU, 1021-AV, 1021-AW	1950	Equipment		12		9S
Standard Signal Generator 603-A	1932	Equipment	2 - 30	11		5S
Standard Signal Generator 805-C	1946–61 ??	Equipment	10 - 6L6	4		5S
Standard Signal Generator 1001-A	1949 ?	Equipment	5 - 6C4	9		26S		$
Straightline Frequency Condenser 374	1925	Radio part		1
Straightline Wavelength Condenser 334	1925	Radio part		1
Strobotac 631-A	1935–39 ?	Equipment	3 - 631P1	1
Strobotac 631-B	1939–53 ?	Equipment	3 - 631P1
Strobotac 631-BL	1951–61 ?	Equipment	3 - 631P1			7S
Strobotac 631-BLS3	1956–61 ?	Equipment	3 - 631P1
Strobotac 631-BLS8	1956–61 ?	Equipment	3 - 631P1
Strobotac Electronic Stroboscope Type 1531-A	1961 ?	Equipment	2 - 5965	3		30S
Test Oscillator 360	1930	Equipment	1 - UX112A	2		2S		$
Test-Signal Generator 404	1930 ??	Equipment		2
Test Signal Generator 604-B	1932 ?	Equipment	2 - 31	2		2S
Tube Tester 361-B	1926 ?	Equipment				1S
Two-Signal Audio Generator 1303-A	1951–59 ?	Equipment	14 - 6SL7GT	1		4S	2F
Two Step Amplifier 215	1920	Ampl/Mixer	2	7		1S		$
UHF Oscillator 857-A	1946–51 ??	Equipment	3 - 316A	9		8S
Unit Oscillator Type 1208-C	1965 ?	Equipment	1 - 2C43	6		1S
Unit Oscillator 1211-C	1962	Equipment	1 - 5763	5		9S
Unit Oscillator 1215-B	1953 ?	Equipment	1 - ECC81	2		12S
Unit Power Supply 1203-B	1962 ?	Fuente-Al	1 - 6X4	4		2S
Universal	1926	Kit	4	1
Universal Bridge 293-A	1931	Equipment		1		3S
Vacuum Tube Bridge 561-A	1932 ??	Equipment		8
Vacuum Tube Bridge 561C	1943 ??	Equipment				1S
Vacuum Tube Detector Type 211	1919 ?	mod-pre26	1	1
Vacuum-Tube Fork and Power Supply 723-C & 723-P1	1941 ?	Equipment	1 - 1A5G	7		4S
Vacuum-Tube Voltmeter (Thermionic) 726-A [6Q7G]	1939	Equipment	3 - 955	5		8S
Vacuum-Tube Voltmeter (Thermionic) 726-A [75]	1936–38	Equipment	3 - 955	12		1S
Vacuum-Tube Voltmeter 727A	1949 ??	Equipment	3 - 957			1S
Vacuum-Tube Voltmeter 728A	1949 ??	Equipment				1S
Vacuum Tube Voltmeter 1800-A	1945 ??	Equipment	9 - 6SU7GTY	10		7S
Vacuum Tube Voltmeter 1800-B	1956 ?	Equipment	7 - 9005	4		2S
Vacuum-Tube Voltmeter 1803-A	1955 ??	Equipment	3 - 6AL5	10
Vacuum-Tube Voltmeter 1803-B	1957 ?	Equipment	3 - 6AL5	3		10S
Variable Air Capacitor 1602-P3	1959–65	Equipment		2
Variable Air Condenser	1922	Radio part		1				$
Variable Air Condenser Type 101	1919 ?	Radio part		1
Variable Air Condenser Type 182	1919 ?	Radio part		3				$
Variable Air Condenser 239-E	1925 ??	Radio part		3
Variable Air Condenser 246L	1912 ??	Radio part		2				$

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