This circuit is from a 1968 Electronic Design. The characteristics of the output transformer are not given and the transistors are of the time. The circuit provides a power of a few watts.
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...