The use of a diac improves the performance of the two dimmers in the previous circuits. The circuit is from the same Radio Electronics magazine in an article that teaches how to use triacs.
The circuit shown is from the GE semiconductor manual of 1977. In the table we have the values of the...
This 1967 Ferranti circuit uses company components. These transistors can be replaced by modern...
This 15 V regulator uses the integrated 100 mA L series. The circuit was suggested by Motorola's Linear...