Repair of Tektronix P6248 1.5GHz Differential probe
Published: 31 August 2021 Teardown and repair of mechanically challenged Tek P6248 active differential probe.
Repair of Keithley 2425 100W SMU
Published: 30 August 2021 Troubleshooting, repair and calibration of Keithley 2425 SourceMeter Units (SMU)
HP/Agilent/Keysight 34420A Nanovoltmeter repair
Tektronix ADA400A Differential Preamplifier repairs
Repair and teardown of Tektronix TMDP0200 and THDP0100 probes
Published: 23 April 2020 Repair and experiments with Tektronix TekVPI high-voltage differential probes.
Tektronix TAP1500 probe repair
Teardown and repair of Tektronix TDP1000 differential 1 GHz probe
Notes on Keithley DD-51 dual-line VFD replacements
Published: 15 March 2020 Keithley DD-51 dual-line dot-matrix display replacements and display differences between BOE and Noritake-Itron PCBA.
Ectron 1120 Thermocouple/Voltage-Calibrator repair
Published: 06 June 2019 Repair of small, but very capable low-voltage thermocouple calibrator source.
Fluke 8842A repair and calibration
Fluke 1529 Chub-E4 precision thermometer readout
Published: 24 August 2018 Repair and testing of Fluke/Hart-Scientific 1529 Chub-E4 precision thermometer system.
Fluke 8846A 6.5-digit DMM teardown
Advantest R6581T 8.5-digit DVM/Ohmmeter repair