Which coil lug the power wire goes on
The supply wire (often a pair or the heavier gauge) goes to the lug with the banded end of the diode. The thinner wire is the return to the driver transistor and goes to the lug with the unbanded end.
Systems
Related tips
- Check every coil's resistance before first power-up
- Coil sleeves by mechanism
- Which wire goes where on a playfield 2N5879
- Playfield coil chart: resistance and use
- Gottlieb coil wrappers are colour coded
- How the pop bumper driver board fires its coil
- Coil command lines during test step 17
- House-numbered coils need the chart, not the number
Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part One, Clay Harrell (pinrepair.com)