How the two windings of a flipper coil work
A flipper coil holds two windings: a few turns of heavy wire (low resistance, full power) for the stroke, and many turns of thin wire (high resistance) for holding. When the flipper reaches the top, the EOS switch opens and only the hold winding carries current, so a held flipper does not overheat.
Systems
Related tips
- Flipper coils have two windings
- Measuring a flipper coil's windings
- Replacing a flipper coil
- Testing flipper coil diodes
- How a System 11 flipper coil works
- Flipper coil numbers carry two windings
- Removing and checking the flipper coil stop
- Replace an elongated flipper coil bracket
Source: Repairing Williams System 11 Pinball 1986 to 1990, Deel 1, Clay Harrell (pinrepair.com)