… internal combustion engines (for example, ignition magnetos, magneto-dynamos, ignition coils, sparking plugs …
Explanatory notes
… internal combustion engines (for example, ignition magnetos, magneto‑dynamos, ignition coils, sparking plugs and … it into the cylinder‑head, and there is a terminal at the top of the central electrode for connection to the source of … mainly on aircraft, when the turning speed at starting is too low for the engine magnetos to function. (IJ) Glow …