Suggested by a 1965 Electronic Design, this circuit was originally proposed for oscilloscope operation, but can be used with other instrument types.
June 2017 - Mouser Electronics already has to ship the new MC Crystal Real Time Crystal Modules...
This filter has the components calculated for the frequency of 1 kHz but can be changed. The input...
Found in documentation from the 70s, this TTL circuit is based on optical sensors made with LEDs...