Keithley 775A Programmable Counter TCXO Repair
In my last post, I did a teardown of the Keithley 775A programmable counter/timer. And while feeding a 10 MHz […]
Keithley 775A Programmable Counter Teardown
I just picked up a Keithley 775A programmable frequency counter from eBay. Specification-wise, this counter is very similar to the […]
DS3232 Clock Frequency Calibration
DS3232 is an extremely accurate RTC with a guaranteed accuracy of 2.5 ppm (0 °C to 40 °C), which translates […]