Mr. Pinball Tip:

If you have an old enough Bally pinball, you'll find some of the coils with strange part numbers. This chart allows you to cross-reference these with more modern part numbers should you need to make a substitution. This information is also helpful should you run across some of these coils so you can use them in newer machines. This is from an original Bally chart dated Jan. 6, 1971.
Old Coil NumberNew Coil Number
CO-25A-7A-25-1050
CO-25GG-7B-25-925
CO-25H-7BC-25-925
CO-26A-9A-26-1100
CO-26GG-9B-26-1100
CO-27R-11C-27-1000
CO-28R-15C-28-1100
E-184-41BF-27-1250
E-184-46EA-30-1150
E-184-47EA-32-1550
E-184-55B-29-1200
E-184-56A-27-1100
E-184-74CF-28-1025
E-184-75E-32-1700
E-184-112EA-29-950
E-184-135BA-25-925
E-184-155D-27-425
E-184-156D-28-500
E-184-160B-25-750
E-184-175AP-27-1300
E-184-180CE-33-4800
E-184-190AF-25-600/31-1000
E-184-204AF-27-1000/32-1300
E-184-205B-27-1300
E-184-206CD-29-1600
E-184-207A-27-1400
E-184-213A-27-1300
E-184-218F-31-1500
E-184-224F-31-2100
E-184-231CA-29-800/31-900
E-184-235AK-25-1050
E-184-236J-28-1100
E-184-237BA-26-1040
E-184-241AF-25-600/31-1000
E-184-243A-26-1200
E-184-248FC-30-1300
E-184-249BF-28-1500
E-184-250D-30-700
E-184-252BB-26-655/32-1245
E-184-254FC-30-1400
E-184-257AP-25-1050
E-184-260B-28-1600
E-184-261AP-31-3000
E-184-262A-26-1200
E-184-263AF-27-775/31-861
E-184-264A-28-1900
E-184-265AF-25-600/31-1000
E-184-266D-29-675
E-184-268AF-26-750/31-900
E-184-269FC-33-2600
E-184-270AB-31-3000
E-184-271AK-24-750
E-184-272A-25-1000
E-184-274FC-32-2100

The following table contains the same information, but is sorted by the new coil number.
New Coil NumberOld Coil Number
AK-24-750E-184-271
AF-25-600/31-1000E-184-190
AF-25-600/31-1000E-184-241
AF-25-600/31-1000E-184-265
B-25-750E-184-160
B-25-925CO-25GG-7
BA-25-925E-184-135
BC-25-925CO-25H-7
A-25-1000E-184-272
A-25-1050CO-25A-7
AK-25-1050E-184-235
AP-25-1050E-184-257
BB-26-655/32-1245E-184-252
AF-26-750/31-900E-184-268
BA-26-1040E-184-237
A-26-1100CO-26A-9
B-26-1100CO-26GG-9
A-26-1200E-184-243
A-26-1200E-184-262
D-27-425E-184-155
AF-27-775/31-861E-184-263
AF-27-1000/32-1300E-184-204
C-27-1000CO-27R-11
A-27-1100E-184-56
BF-27-1250E-184-41
A-27-1300E-184-213
AP-27-1300E-184-175
B-27-1300E-184-205
A-27-1400E-184-207
D-28-500E-184-156
CF-28-1025E-184-74
C-28-1100CO-28R-15
J-28-1100E-184-236
BF-28-1500E-184-249
B-28-1600E-184-260
A-28-1900E-184-264
D-29-675E-184-266
CA-29-800/31-900E-184-231
EA-29-950E-184-112
B-29-1200E-184-55
CD-29-1600E-184-206
D-30-700E-184-250
EA-30-1150E-184-46
FC-30-1300E-184-248
FC-30-1400E-184-254
F-31-1500E-184-218
F-31-2100E-184-224
AB-31-3000E-184-270
AP-31-3000E-184-261
EA-32-1550E-184-47
E-32-1700E-184-75
FC-32-2100E-184-274
FC-33-2600E-184-269
CE-33-4800E-184-180

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