This circuit was found in a 1969 Mullard documentation. Used transistors can be replaced with modern equivalents. Output transistors may be BD135 and 136 with heatsinks.
This circuit controls loads powered by the power grid, remembering that it is a half wave...
The critical point in this project is the adjustment of the optical system, mainly to avoid...
Found in a 1968 American documentation, this circuit generates sawtooth signals whose rise and...