Relay coil resistance and frame sizes

Relay coils measure 10 ohms or more; hold relays meant to stay on (power hold, coin lockout, feature toggles) are typically 100 ohms or more. Short-frame relays are used where space is tight or a fast response is needed (pop bumper relays); long-frame relays are simpler to adjust and usually more dependable.

Systems

• Electro-mechanical

Related tips

• Gottlieb relay coil equivalents and resistance
• Momentary and hold relays, and the coil resistance a hold relay needs
• Relay banks and their reset coil
• Bally KKN relay coils and their C-7800 numbers
• AC and DC relays and coil stops are not interchangeable both ways
• How a hot hold relay coil destroys itself
• Wire an A-16890 relay coil to run on EM AC power
• Gottlieb relay and general-purpose coil windings

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