Scintilla Magneto Manual -

: This eliminated the need for high-voltage current to pass through moving brushes or slip rings, significantly increasing reliability at high altitudes.

"Rotate the drive shaft until the timing marks align," the manual whispered in its formal, 1940s prose. Elias turned the gear. He felt the magnetic drag—the "kick" of the internal magnets fighting to stay aligned. It was a phantom resistance, the ghost of a thousand flight hours. scintilla magneto manual