This circuit is from Motorola's Linear Interface ICs from 1993. The MC1723 is the equivalent of the well-known 723. The transistor supports equivalents.
The frequency of this clock oscillator is given by the crystal. The trimmer sets the ideal...
We found this circuit in a documentation from the 90s. It is a simple test for NPN and PNP...
We found this micro amplifier in a technical documentation from National Semiconductor. The...