Found in 1969 RCA documentation, this dimmer uses a dual time constant setting to achieve better control of the triac's trigger point.
This circuit is from Dutch documentation from 1967. The circuit works with a component of the...
We found this circuit in the November 1995 Electronics Now magazine. The circuit is more accurate than...
This circuit is from a 1976 documentation. The diodes can be 1N34 or equivalent, and the power...