The Incredible Hulk: under-playfield coil transistor
On The Incredible Hulk, two 2N5875s under the playfield fire the "A" and "B" shooters. They are pre-driven from driver board Q3 or Q4, so a dead or locked-on coil there may be the playfield transistor, the MPS-U45 or the wiring between them.
Systems
Games
Related tips
- Joker Poker: under-playfield coil transistor
- Testing an under-playfield 2N5875 and its wiring
- The Incredible Hulk: game PROM letter
- Which driver transistor fires which coil
- Games with under-playfield 2N5875 driver transistors
- Coils or driver transistors run very hot
- Spare transistors for System 1 boards
- Testing the 2N6043 coil drivers
Source: Gottlieb System 1 Pinball Repair from 1977 to 1980, Clay Harrell (pinrepair.com)