This circuit is better than the previous one in that the control is isolated by a transformer. The transformer has 110 or 220 V primary and 6.3 to 12 V secondary with 200 to 500 mA current.
This circuit was obtained from an English magazine from 1979, but can be easily assembled...
We found this circuit in a 1991 European documentation. The circuit shows how to use the LM3900...
Found in a General Electric documentation from the 1980s, this circuit makes use of a FET...