This circuit was found in a General Electric documentation from 1970. Equivalent transistors can be used. The maximum signal frequency for the indicated components is 250 kHz.
We found this circuit in an old American documentation. The circuit is suitable for motorcycles and...
This circuit for low voltage motors was found in an Electronics Now from the 90's. The transistor must...
This antenna for the frequencies 146 or 440 MHz was found in a magazine 73 for Amateur Radio of...