Use 35 A wire-lead bridge rectifiers as spares
Keep a few 35 A, 200 V (or higher) bridges with wire leads. Pre-Xenon games came with small VJ248 bridges of 8 to 10 A; a 3502W wire-lead bridge (35 A 200 V) fits Xenon and later games directly and can be adapted to the older rectifier boards.
Systems
Related tips
- Rectifier board swap: the white wire soldered to the board is the GI bus (J1 pin 8)
- How the -49 rectifier board differs from the -18
- What each rectifier on the board feeds
- Getting at the bridges on -18/-49 boards
- Rectifier board test points
- Rectifier board test point voltages
- The three Bally rectifier boards
- Replacing the -49 VARO pair with one bridge
Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part One, Clay Harrell (pinrepair.com)