Emitter Follower Complementary Stage (CB25623E)

This circuit was found in the October 1993 Electronics Now magazine. The circuit can be used in a small audio amplifier.

Crystal controlled oscillator (CB9655E)
This 5.1 MHz oscillator was found in a 1980s American documentation. The used operational...
Beep with Piezoelectric Transducer (CB17392E)
This configuration has already been used several times in many of our projects and can be found in...
Mains Voltage Indicator (CB11532E)
This simple circuit makes use of neon lamps to indicate the voltage of a power grid. The lamps are...