We found this 12 V ignition circuit in the 1964 RCA transistor manual. The 2N3054 can be replaced by the TIP41C. The two transistors must be provided with heat sinks.
Other operational amplifiers of the same the series, such as the MC34072, MC34074, MC35071,...
This circuit is from documentation from 1965. However, it can be created with modern transistors. Power...
This two-transistor delay circuit from the 1960s was found in documentation from the time....