TIP102 is a good substitute for SE9302 coil drivers

The solenoid driver board's SE9302 coil transistors can be replaced with TIP102, which has the same characteristics but a 12 A rating instead of 10 A, and is easy to find because many other games use it.

Systems

• Bally MPU AS-2518-17
• Bally MPU AS-2518-35
• Stern MPU-100
• Stern MPU-200

Related tips

• Replace SE9302 drivers with TIP102, and renew the parts around them
• Kickout coil burns up in attract mode: driver transistor, resistor and the CA3081 at U3
• Testing the 2N6043 coil drivers
• Replace failed TIP122 drivers with TIP102
• Quick test for shorted TIP122/TIP102 drivers
• Test a TIP120/TIP102 solenoid driver with a meter
• 20-second test for shorted coil driver transistors
• Where the WPC coil and lamp drivers sit

Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part One, Clay Harrell (pinrepair.com)