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.
With this configuration it is possible to obtain an 80 dB gain from two 741 operational...
This is the common configuration for a 1 MHz crystal oscillator with a 7400. The circuit can...
This circuit with LDR and neon lamp has its operating frequency given by the light. The circuit is from...