This simple SCR control was found in the December 1987 issue of Radio Electronics magazine. The circuit uses a well-known C106 but can be used in equivalents of the same series.
This 3 and-a-half digit circuit was found in a Teledyne documentation from the 90s. The circuit uses...
We found this circuit in an English publication in 1976. The circuit is based on the use of a...
This filter of two transistors has the cutoff frequency determined by the formulas next to the...