Fitting a parallel FL11630 or FL11722 flipper coil
Steps
- Turn the game off, unbolt the coil stop and remove the old coil.
- Fit the new coil, lugs away from the coil stop if the wires reach.
- Find the lug with both the thin and thick windings; both diode bands face it.
- Connect the EOS switch wires to the centre lug and the outer unbanded lug (with the thin winding), and fit the 2.2 uF 250 V non-polarized capacitor across the EOS lugs.
- Connect the main power wire (the one from the old banded lug) to the outer lug nearest the diode bands, and the return wire to the other outer lug.
Systems
Related tips
- Williams flipper coils from weakest to strongest
- Williams 50 V fat flipper coils ranked by strength
- WPC flipper coils, weakest to strongest
- WPC flipper coils from weakest to strongest
- WPC flipper coils, weakest to strongest, with resistances
- Flipper coil strength order (WPC flipper coil strengths file)
- Replace a series wound flipper coil with the parallel FL11630 type
- Series FL23/600-30/2600 vs parallel FL11630 flipper coils
Source: Repairing Williams System 11 Pinball 1986 to 1990, Part Three, Clay Harrell