Resistor ratio dividers based on N equal resistors
Published: 06 February 2021 Method of making fixed resistor and voltage ratios from equal resistance networks.
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
Keithley 6517A electrometer restoration project
Fluke 5790A AC Measurement Standard repair
- Resistor ratio dividers based on N equal resistors
- Tektronix ADA400A Differential Preamplifier repairs
- Repair and teardown of Tektronix TMDP0200 and THDP0100 probes
- Tektronix TAP1500 probe repair
- Teardown and repair of Tektronix TDP1000 differential 1 GHz probe
- Notes on Keithley DD-51 dual-line VFD replacements