ESR Measurement Using Multimeter and Function Generator
Capacitor ESR (Equivalent Series Resistance) measurement is very useful in diagnosing issues with power supplies. In linear power supplies, a […]
Keithley 197 Battery Option Build
I have been quite happy with my fixed-up Keithley 197 5 ½ digit bench meter purchased from eBay (you can […]
Keithley 197 Teardown and Repair
A few days ago, I bought a Keithley 197 sold as “unknown working condition” on the cheap. The seller said […]
Backup and Flash Firmware using Arduino
A while ago, I did a tear-down of a Keithley 196 bench multimeter. Towards the end of that post I […]