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 circuit with JFET and Unijunction was found in an ancient American documentation. The...
This metering bridge circuit uses one power supply only. The operational ones depend on the...
We found this configuration in the 1964 RCA transistors manual. As indicator loads in each stage,...