This circuit can be used as an amplifier for musical instruments or even with your cell phone. The circuit is old and was found in the 1990 edition of Radio Electronics Experimenter magazine.
This circuit produces a sinusoidal signal whose frequency can be calculated using the formula next...
This timer circuit was found in a 1980s documentation. The integrated circuit is the 555, which...
This circuit was found in Radio Electronics from the 90s. The transducer is a tweeter and the...