Teardown of an MEDA PLM-100 AC Magnetometer
I did a teardown a while ago on a cheap eBay electromagnetic radiation detector, and if you recall the performance […]
Converting Celsius to Fahrenheit – The Analog Way
I have an old Keithley 1301 temperature probe. This probe is an accessory to the Keithley 130A/131 multimeter and is […]
How does Vacuum Cleaner Clean/Dirty Indicator Work?
I have always wondered how the clean/dirty indicator on my Hoover vacuum cleaner works. So when it was time to […]
Visualizing Comparator and Op Amp Hysteresis
Hysteresis can be added to a comparator circuit to improve its stability, especially when the input signal is noisy. In […]