Power Darlington Stage (CB22365E)

This circuit is an alternative to using Darlington power transistors in the previous amplifier. The power is a few watts.

CMOS Injector (CB15763E)
The signal injector illustrated in the figure uses a single integrated circuit and generates...
Electronic lock (CB20926E)
This CMOS circuit was found in a Popular Electronics from the 80's. The circuit consists of a...
Crystal Oscillator (CB19211E)
This conventional oscillator can generate signals from 8 to 30 MHz depending on the crystal used....