How a two-winding flipper coil works
A flipper coil holds two windings: a few turns of heavy wire with low resistance for the power stroke, and many turns of thin wire with high resistance for holding. On pre-Fliptronics games the normally closed end-of-stroke switch shorts out the hold winding until the flipper reaches the top, then opens so only the hold winding carries current and the coil stays cool when the button is held.
Systems
Related tips
- Flipper coils have two windings
- Replacing a flipper coil
- Testing the diodes on a flipper coil
- How the two windings of a flipper coil work
- Checking a flipper coil's resistance
- Fliptronic flipper coil wire colours
- Williams flipper coils from weakest to strongest
- Coil sleeves and flipper rebuild spares
Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part Two, Clay Harrell (pinrepair.com)