This small analog TV transmitter was found in an Electronics Now from the 90s. The range is around 20 meters, and the coils are according to the channel on which you want to receive the signal.
This circuit was obtained from Radio Electronics magazine in May 1958. The circuit uses...
This bidirectional motor control was found in an 80's Electronic Engineering. The circuit uses a...
This 5V power supply with a 1.5 to 3 A current was found in Maxim documentation from the 90s. The...