Keithley

Keithley Instruments (→ WikiData) was founded by Joseph F. Keithley (1915-1999) in Cleveland, OH, in 1946.

In 1965, they moved to Solon, OH.

In 2010, Keithley became an indirect wholly owned subsidiary of Danaher Corporation, merged with Tektronix, and shifted manufacturing to Tektronix facilities.

Documents

• Keithley catalogs
• Keithley manuals
• Low Level Measurements Handbook: Precision DC Current, Voltage, and Resistance Measurements, 7th edition, 2016

Links

• Keithley Instruments @ Wikipedia
• Keithley @ radiomuseum.org
• https://www.tek.com/keithley

Instruments

• 

  Keithley 160
  3½-digit DMM

• 

  Keithley 175A
  4½-digit TRMS DMM

• 

  Keithley 177
  4½-digit Microvolt DMM

• 

  Keithley 179
  4½-digit TRMS DMM

• 

  Keithley 181
  5½-digit Digital Nanovoltmeter

• 

  Keithley 191
  5½-digit DMM

• 

  Keithley 192
  6½-digit DMM

• 

  Keithley 193A
  6½-digit System DMM

• 

  Keithley 195
  5½-digit DMM

• 

  Keithley 195A
  5½-digit DMM

• 

  Keithley 196
  System DMM

• 

  Keithley 197
  5½-digit Microvolt DMM

• 

  Keithley 199
  5½-digit DMM/Scanner

• 

  Keithley 220
  Programmable Current Source

• 

  Keithley 224
  Programmable Current Source

• 

  Keithley 230
  Programmable Voltage Source

• 

  Keithley 263
  Programmable Calibrator/Source

• 

  Keithley 414A
  Analog Picoamperemeter

• 

  Keithley 480
  Digital Picoamperemeter

• 

  Keithley 485
  Digital Picoamperemeter

• 

  Keithley 502
  Analog Milliohmmeter

• 

  Keithley 580
  5½-digit Digital Microohmmeter

• 

  Keithley 600A
  Analog Electrometer

• 

  Keithley 602
  Analog Electrometer

• 

  Keithley 610C
  Analog Electrometer

• 

  Keithley 614
  Digital Electrometer

• 

  Keithley 616
  Digital Electrometer

• 

  Keithley 617
  Digital Electrometer/Source

Products by Keithley

Model	Class	Series	Description	Introduced	Discontinued
Keithley 160	Multimeter		3½-digit digital multimeter	1975	(?)
Keithley 175A	Multimeter		4½-digit TRMS digital multimeter	(?)	(?)
Keithley 177	Multimeter		4½-digit TRMS digital multimeter	1978	(?)
Keithley 179	Multimeter		4½-digit TRMS digital multimeter	1978	(?)
Keithley 181	Multimeter		5½-digit nanovoltmeter	(?)	(?)
Keithley 182	Multimeter		6½-digit sensitive voltmeter	(?)	(?)
Keithley 191	Multimeter		5½-digit multimeter	1979	(?)
Keithley 192	Multimeter		6½-digit multimeter	1979	(?)
Keithley 193A	Multimeter		6½-digit system multimeter	1985	(?)
Keithley 195	Multimeter		5½-digit TRMS digital multimeter	(?)	1984
Keithley 195A	Multimeter		5½-digit TRMS digital multimeter	1984	(?)
Keithley 196	Multimeter		6½-digit system multimeter	1986	(?)
Keithley 197	Multimeter		5½-digit digital multimeter	(?)	(?)
Keithley 199	Multimeter		5½-digit multimeter	(?)	(?)
Keithley 220	Power supply		Programmable current source	(?)	(?)
Keithley 224	Power supply		Programmable current source	(?)	(?)
Keithley 227	Power supply		Current source	1976	(?)
Keithley 230	Power supply		Programmable voltage source	(?)	(?)
Keithley 244	Power supply		Negative HV source	1973	(?)
Keithley 263	Power supply		5½-digit calibrator / source	(?)	(?)
Keithley 414A	Multimeter		Analog picoamperemeter	1976	(?)
Keithley 480	Multimeter		Digital picoamperemeter	1978	(?)
Keithley 485	Multimeter		Digital picoamperemeter	(?)	(?)
Keithley 502	Multimeter		analog milliohmmeter	1960	(?)
Keithley 580	Multimeter		5½-digit microohmmeter	1985	(?)
Keithley 600A	Multimeter		Electrometer	(?)	(?)
Keithley 602	Multimeter		Electrometer	(?)	(?)
Keithley 610	Multimeter		Electrometer	1960	(?)
Keithley 610B	Multimeter		Electrometer	1964	(?)
Keithley 610C	Multimeter		Solid-state Electrometer	1968	(?)
Keithley 614	Multimeter		Electrometer	1981	(?)
Keithley 615	Multimeter		Electrometer	1969	(?)
Keithley 616	Multimeter		Electrometer	1975	(?)
Keithley 617	Multimeter		Electrometer/Source	1984	(?)