I have two used orange (FL15411) Williams/Bally flipper coils. I would like to use them in a machine that came with the wrong flipper coils (FL11630 and FL11629). Is there a quick way of checking them out without doing a full install and possibly damaging the machine??
Quoted from LTG:Take the diodes off and ohm them out.
Then you'll know if they are good or not.
LTG : )
Why can't you ohm them out with the diodes. Just swap the meter leads if the reading doesn't make sense.
Quoted from markmon:Why can't you ohm them out with the diodes. Just swap the meter leads if the reading doesn't make sense.
You probably could. If checking to see if they are bad or good, I just don't like having anything else on the same circuit.
LTG : )
Found the following table for resistance values ;
FL-11753: used for small flippers, like the "Thing" flipper on Addam's Family. 9.8 ohms/165 ohms. Usually a yellow coil wrapper.
FL-11722: used for weak flippers, like Twilight Zone's upper right flipper. 6.2 ohms/160 ohms. Usually a green coil wrapper.
FL-11630: "standard" flipper strength, as used on older games like Earthshaker, Whirlwind, etc. 4.7 ohms/160 ohms. Usually a red coil wrapper.
FL-15411 : strong flipper, as used for main flippers on Addam's Family, Twilight Zone, etc. 4.2 ohms/145 ohms. Usually an orange coil wrapper.
FL-11629: strongest Williams flipper. Used on most of the newest WPC games. 4.0 ohms/132 ohms. Usually a blue coil wrapper.
Measured both of my orange coils with diodes intact.
4.2 ohms/143.2 ohms (Williams coil)
4.2 ohms/148.3 ohms (generic coil)
I flipped the test leads and got the same result.
I think they're good!
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