Obtained from an English publication in the 1980s, when a weather station operated in that country at 60 kHz, this circuit employed only two general-purpose transistors.
This circuit with the ULN3784B appeared in the October 1984 issue of Radio Electronics magazine. It can...
Using a CA3059 this circuit was found in the July 1995 Electronics Now magazine. The triac must be...
This circuit is from a 1966 General Electric documentation. The circuit applies to sensitive SCRs for...