This circuit was found in Radio Electronics from the 90s. The CMOS integrated circuit is a PLL not easy to obtain today. The output stage can be exchanged for another one with greater power.
This oscillator has its frequency controlled by crystal and its frequency can be between 100 kHz...
This circuit is from a 1978 operational amplifier manual. The power supply must be symmetrical, and the...
This useful benchtop power supply uses a single LM350 integrated circuit as a regulator. The...