This integrated amplifier was used in televisions from the 70s, with good sensitivity characteristics. The circuit was powered with 9 V.
This circuit serves as a reverse warning for the car. When the reverse is activated, the circuit...
The range of this transceiver found in an old national publication is of the order of 1 km. The...
This reducer was found in documentation from the 1980s, using transistors of the time. The higher...