Chimes and the score reel noisemaker on the first games

The first System 3 games used chimes. Hot Tip, Lucky Seven and some early World Cups also had a score reel in the lower cabinet, fired by a driver board transistor, just to make electromechanical noises. World Cup was the first to get an electronic sound board, and the reel was dropped early in its run.

Systems

• Williams System 3

Games

• Lucky Seven
• World Cup

Related tips

• Sound EPROM files used by System 3-6 games

Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Three, Clay Harrell (pinrepair.com)