Free play on early-1980s Williams games without a free play setting

If the manual for an early to mid-1980s Williams game lists no free play option, set the maximum credits adjustment (usually adjustment 18) to 00; on many of these games that gives free play.

Systems

• Williams System 6 / 6A
• Williams System 7
• Williams System 9
• Williams System 11

Related tips

• Setting free play

Source: Pinball Machine Care & Maintenance, Bernard B. Kamoroff (Bell Springs Pinball Alley)