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.
We found this circuit in an English publication. The transistor can be a BC558. The instrument can be...
This circuit was found in a 1965 General Electric publication. The circuit can be adapted to...
This simple circuit helps to save incandescent lamps by leaving their filament slightly heated and thus...