Taking an example of a Raytheon operative as uncommon today, the circuit applies to other operational amplifiers. The formulas are given next to the diagram.
This circuit triggers three incandescent light bulbs following the audio signal applied to its...
This circuit is from an American publication from 1973. We can implement it with the NF494 for the RF...
The presented circuit allows to control the valve of a tap. The positioning of the emitter and the...