This super regenerative detector circuit was found in an English documentation from 1963. The coil is frequency compliant. The transistors are germanium of the time.
In the figure we have the way to obtain an adjustable constant current source of 2 mA. The...
We found this circuit in a Popular Electronics of the 90s. The circuit can be easily mounted...
This circuit provides an output voltage approximately 2 times that of the input voltage. The...