This control for 1200 W of power was found in the documentation of General Electric of 1966 has a activation delay. The triac must be according to the load.
The integrated circuit used in this project is not common today, but it can be implemented with more...
Found in an American publication from 1969, this circuit can be adapted to be used as a shield....
This current meter with many scales was found in a 80s American documentation. The operational amplifier...