Found in a 90’s American documentation, this circuit indicates the frequency of input pulses up to 1 kHz. The circuit has a very explored configuration on this site.
This is the typical circuit of an FET amplifier stage in the common source configuration. The circuit is...
This voltage-controlled oscillator was found on an Elektor from the 90s. The components are from...
We found this circuit in an English publication from 1980. It provides a logical output signal when...