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USA: Radio Catalog for the radio manufacturer Hewlett-Packard, (HP); Palo Alto, CA

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Model	Year	Category	Tubes	Pictures			Forum	Coll.Pr.
Square Wave Generator 210A	1943 ?	Equipment	9 - 6SF5	2		1S	1F
Square Wave Generator 211A	1955	Equipment	14 - 6BQ7A	10		17S
Standard Frequency Receiver 5090A	1964 ?	Equipment		1		1S
Standing Wave Indicator 415A	1949 ?	Equipment		1
Standing Wave Indicator 415B	1955 ??	Equipment	6 - 12AX7	4
Standing Wave Ratio Meter 415D	1963 ?	Equipment		1		3S
Storage-Normalizer 8750A	1980 ??	Equipment		3
Storage Oscilloscope 1223A	1977–79	Equipment	1	5
Storage Oscilloscope 1703-A	1972	Equipment		1
Storage Oscilloscope 54600A	1990 ??	Equipment	1	1
Supersonic Signal Generator 205AH	1942 ?	Equipment
Sweep Oscillator 691-D	1966	Equipment
Sweep Oscillator 692-D	1966	Equipment
Sweep Oscillator 693-D	1966	Equipment		5
Sweep Oscillator 694-D	1966	Equipment
Sweep Oscillator 8690 A	1966 ??	Equipment	16 - 5915	1
Synthesized Signal Generator 8642A	1988 ?	Equipment		1
Synthesized Signal Generator 8644A	1988 ?	Equipment		1
Synthesized Signal Generator 8657B	1991 ??	Equipment		4
Synthesized Signal Generator 8660A	1978 ??	Equipment		4				$
Synthesized Signal Generators 8660C	1981 ??	Equipment		5				$
Synthesizer Driver 5110B	1965 ??	Equipment
Synthesizer / Function Generator HP3325A	1978	Equipment		11				$
Synthesizer/Level Generator 3336A/B/C	1981 ?	Equipment	1	2		2S		$
Test Fixture 16047A	1985 ??	Equipment		3
Test Oscillator 651A	1965	Equipment		1
Test Oscillator 651B	1967 ?	Equipment		1				$
Test Oscillator 652A	1967–79 ?	Equipment		1				$
Test Oscillator 654A	1973 ?	Equipment		2
Thermistor Mount 477B	1955 ??	Equipment		1
Thermistor Mount "Probe" 478A	1968 ??	Equipment		4
Time Base and Delay Generator Plug-In 1825A	1971	Equipment	76	3		21S		$
Time Base Plug-In 1820B	1967	Equipment		6
Timer / Counter 5304A	1971 ??	Equipment		3				$
Timer/Counter/DVM 5326B	1970	Equipment		2
Tracking Generator 8443A	1971	Equipment
Tracking Generator 8444A	1971	Equipment		3
Transfer Oscillator 5257A	1971 ?	Equipment		1
Transistor Test Jig 13510A	1968 ?	Equipment		1
Transmission/Reflection Test Set 8502A	1976	Equipment		2
True RMS-Voltmeter 3400A	1964–80	Equipment	1 - 7586	8		25S	2F	$
True RMS Voltmeter 3403c	1973	Equipment		13		1S	1F	$
Tunable Bolometer Mounts 475	1952	Equipment		1
UHF Signal Generator 610B	1952 ?	Equipment		1
UHF Signal Generator 612A	1954 ??	Equipment	15 - 12AU7	9		4S		$
UHF Signal Generator 614A	1949 ?	Equipment		3
UHF Signal Generator 616A	1952 ?	Equipment		2
Universal Bridge 4260A	1966 ?	Equipment		8		21S		$
Universal Bridge 4265A	1973 ??	Equipment		7
Universal Counter 5315A	1979	Equipment		6				$
Universal Counter 5315B	1979	Equipment		5				$
Universal Counter 5325B	1969	Equipment	7	2				$
Universal Counter 5334B	1984–92 ?	Equipment		5				$
Universal Power Supply 6236B	1977 ?	Equipment		2		5S
Universal Power Supply 6237B	1977 ?	Equipment		1
Universal Time Interval Counter 5370B	1981 ??	Equipment		7				$
Vacuum Tube Voltmeter 400AB	1955	Equipment		1		7S
Vacuum Tube Voltmeter 400C	1949 ?	Equipment		3		5S
Vacuum Tube Voltmeter 400D 6625-643-1670	1954	Equipment	8 - 6CB6	19		36S		$
Vacuum Tube Voltmeter 400H (6625-557-8261)	1957 ??	Equipment	8 - 6CB6	8		7S	1F	$
Vacuum Tube Voltmeter 400 HR	1957 ?	Equipment	8 - 6CB6	8		1S
Vacuum Tube Voltmeter 400L 6625-729-8360	1966	Equipment	8 - 6CB6	1		4S	1F	$
Vacuum Tube Voltmeter (VTVM) 410BR	1955–75 ?	Equipment	4 - 6X4	4		1S	1F
Vacuum Tube Voltmeter 410C	1963	Equipment	1	30		10S		$
Vector Impedance Meter 4800A	1965 ??	Equipment		2		1S
Vector Voltmeter HP8405A	1966	Equipment		3				$
VHF Attenuator 355D	1958 ?	Equipment		2		1S
VHF Bridge 803A	1951 ?	Equipment		3				$
VHF Detector 417A	1950 ??	Equipment	4 - 5876	4		2S	1F
VHF Oscillator 3200B	1968	Equipment	2 - 6DZ4	11		17S		$
VHF Signal Generator HP 608B	1952 ?	Equipment		5
VHF Signal Generator 608A	1951 ?	Equipment		1		4S		$
VHF Signal Generator 608C	1954	Equipment	15 - 5675	10		2S		$
VHF Signal Generator 608D	1957–65 ?	Equipment	20 - 6BQ7	10		8S		$
VHF Signal Generator 608D	1954 ??	Equipment	18 - 6AH6	9
VHF Signal-Generator 608E	1967–80	Equipment	16 - 6AL5	2		15S		$
VHF Signal Generator 608F	1966 ?	Equipment	15 - 4042	3		2S
VLF Comparitor 117A	1965–75 ?	Equipment		1
Voltmeter 400A	1942–48	Equipment	7 - 6J5	8		3S	1F
Voltmeter 400B	1948	Equipment		1
Voltmeter 427A	1966	Equipment	14	12		4S		$
VTVM Vacuum Tube Voltmeter 410B	1955–75	Equipment	4 - 2-01C	29		13S		$
Wave Analyzer 3590A	1968	Equipment		2
Waveguide Frequency Meter P532A	1956	Equipment		2
Wide Range Oscillator 200CD [early (5 tubes)]	1952	Equipment	5 - 6SH7	22		1S	1F	$
Wide Range Oscillator 200CD [late (4 tubes)]	1965 ??	Equipment	4 - 6AU6	9		16S	1F
1 GHZ Plug-In (Sampling) 1810A	1971	Equipment	101	3		24S		$
4 Channel Amplifier 1754A	1964	Equipment	6 - 6CW4	2
6 Bit Data Probe 10231B	1975 ??	Equipment		7
50-75 Ohm Adapter 11687A	1975 ??	Equipment		1
500 MHz Probe 1120A	1980 ??	Equipment	10	4		3S
721A [US version]	1959	Equipment	7	5
8640A Signal Generator	1974 ??	Equipment		1

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