This circuit was found on an 80's Ham Radio. The transistor admits equivalent. The circuit can generate 20 to 100 MHz signals operating at the fifth harmonic of the crystal.
This circuit uses a transistor as noise source and a 741 IC as amplifier, sourcing a high...
This simple circuit detects when a conductive liquid reaches the sensors. The circuit has no...
With this circuit it is possible to raise the characteristics of a transistor by checking its gain...