Wiring a two-diode coil in place of a one-diode coil
Each wire goes to the same position on the new coil as on the old one, even though the common lug has moved. Move the wires from old coil to new one at a time. Mixing them up blows the flipper fuse and shorts the coil diodes.
Systems
Related tips
- Testing the diode on a coil
- Which way a coil diode goes
- Which way a coil diode goes
- Measure a flipper coil
- Fire a flipper coil by grounding it
- System 3-7 flipper coils are series wound
- Fitting parallel-wound flipper coils
- Matching a replacement flipper coil by resistance
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Three, Clay Harrell (pinrepair.com)