This circuit is used in a LASER detection system to avoid echoes from short distances in systems up to 1 mile. The circuit is from a 1967 documentation.
The block shown in the figure is a basic source with a configuration widely used in technical...
The output current of this source is determined by resistor R. For 20 ohms, we have 50 mA. For 10...
This circuit, for its simplicity and the fact of using a super-regenerative detector only works...