HP 16340A RC calibration box for electrometers
Published: 24 July 2020
Fixture for electrometer calibration, resistances from 100 Ω to 100 GΩ and 100 + 1000 pF capacitors.
Review and experiments with Ballantine 1394N TVC kit
Published: 31 May 2020
Testing thermal converters from Ballantine, DC, 10 Hz to 100 MHz capable 6-unit set.
ESI SR104 10000 Ohm resistance standard review
Published: 04 April 2018
World's most proven 10000 Ω resistor. Initial checks, overall design review and calibration log.
Keithley 7168 nanovolt switch card and it's use with RPI
Published: 21 January 2017
Application of nanovolt scanner switch card with control from Raspberry Pi
Review of Keithley 2001-TCSCAN scanner card for 200x DMMs with CJC
Published: 25 October 2016
Quick teardown of scanner addon card for Keithley 2000/2001/2002 series DMMs
Teardown of Keithley Model 3706A switch/scan DMM
Published: 07 October 2016
Quick teardown and overview of Keithley switching/matrix 6½-digit system DMM
Keithley Model 7172 Low current 8x12 Matrix card review
Published: 23 February 2016
Review and teardown of large triaxial low-current matrix card Model 7172 from Keithley
Review of old modules TLA7M3 and TLA7N3 for TLA700-series LA's
Published: 10 February 2016
Review of old logic acquisition modules for Tektronix TLA 700/7000 series.