Found in old documentation, this circuit makes use of amplifiers of the time, uncommon today. Next to the diagram, the formula for calculating the components.
The integrated circuit used in this 1986 project is not very common today. The circuit uses few...
This circuit controls a relay causing it to open and close its contacts at a speed that depends on the...
The circuit is from the MC1539 manual, an operational one close to the 741. The transistor admits...