Found in Motorola's 1965 manual, this full-wave dimmer controls a load that depends on the used SCR. The trigger element is a neon lamp.
This circuit was published in an English magazine from 1980. The magazine no longer exists, but...
We found this circuit in an old American documentation, from 1971, but the component used is still...
This circuit is from a 1991 publication, but it can be assembled with more modern components. We...