Common collector stage (CB22226E)

This circuit employs an old germanium transistor. The circuit is from a 1950s publication and uses RC coupling.

Who is the fastest Game (CB12394E)
This circuit was found in a 1990 Electronics Handbook. The transistors can also be the BC548 and...
IR Sensor with 741 (CB25575E)
This circuit can be used to obtain control signals from an infrared emitting source. The circuit is...
60 Hz Elliptical Filter (CB17613E)
The integrated circuit used in this project is not the most common. The use of a crystal...