This circuit was suggested by Texas Instruments in a 1980s documentation. The transistor must be equipped with a heat sink. The transformer has 10 A secondary current.
This circuit was found in a 1965 General Electric documentation. SCRs and unijunction may be...
This circuit appears from other sources on this site. This was taken from an English documentation from the...
This circuit is from a 1974 Ferranti transistor manual. Transistors are general-purpose types at...