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.
This is the traditional configuration of a 5 V supply with the 7805 for a current of 1 A. The...
This circuit was found in an American 1980s documentation. The transistorized step is the...
This 90's project shows how to use an old cassette recorder to practice telegraphy. In position A of the...