This circuit was found in 1980s Radio Electronics. The circuit includes the power supply. The ICL8038 circuit was very common at the time in this type of application.
The presented circuit emits signals in the FM band, which can be picked up from a distance of a...
The TDA7053 consists of a class B stereo amplifier, formed by two amplifiers connected in bridge...
This circuit activates a piezoelectric buzzer with an oscillator at the end of the programmed...