Found in an Electronic Design, this small power source uses a battery as a voltage reference, consuming little of its current. The source is shunt type.
This transistorized oscillator, a modification of the Colpitts oscillator, was found in the...
This circuit uses a CA3140, an operational amplifier with FETs in the input stages. Equivalent can be...
This signal injector and tracer (follower) was found in an old American documentation. The...