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.
With this circuit it is possible to vary the resistance by adjusting the mark/space reaction of...
This circuit is from a 1967 US publication. The configuration can serve as a basis for designs...
This analog TV circuit can be used on a small transmitter. The circuit is from an 80's American...