Bally and 1948-62 Williams (50 V) EM flipper coils

These games run coils at 50 V, so flipper coils have higher resistance. The usual Bally coil for small 2 inch flippers, zipper flippers included, is AF25-600/31-1000, about as strong as Wizard's AF25-600/28-800. The strongest, from late-1970s games such as Captain Fantastic, is AF-25-500/28-1000 (500 turns of #25, 3.3 ohms), suitable for all Bally EMs and pre-1963 Williams 50 V games.

Systems

• Electro-mechanical

Related tips

• An EM flipper coil is two windings
• Gottlieb and post-1962 Williams EM flipper coil strengths (30 V)
• How an EM flipper coil and its EOS switch work
• Rebuild EM flippers before fitting stronger coils
• Stronger flipper coils for Gottlieb EMs
• Replacing a flipper coil
• Bally zipper flipper solenoids changed at Capersville
• Gottlieb large flipper coils by wrapper colour

Source: Repairing Electro-Mechanical (EM) Coin Operated Games to 1978, Part Two, Clay Harrell (pinrepair.com)