This circuit was found in a 1968 General Electric documentation. It has an input impedance of 2 M ohms and excites a load of 16 ohms. The integrated circuit of the time is the PA237.
This is the receiver circuit for the previous transmitter. The range of the system can reach 100...
This is one of the first solid state laser projects. It was found in the June 1972 issue of Radio...
The sensor of this circuit is a large surface diode. We believe that a small solar cell can also...