Same winding, different length: Data East vs Williams A-22-550

A-22-550 exists from both Data East and Williams with the same 22 AWG, 550 turn winding and about 2.3 ohms, but the Data East coil is 1-1/2 in long and the Williams one 1-5/8 in. Matching gauge and turns is not enough; the bobbin must fit the bracket and plunger stroke.

Systems

• Data East CPU Version 1/2
• Data East CPU Version 3
• Data East/Sega CPU Version 3b
• Williams System 3
• Williams System 4
• Williams System 6 / 6A
• Williams System 7
• Williams System 9
• Williams System 11
• Williams System 11A
• Williams System 11B
• Williams System 11C
• WPC Alpha-Numeric
• WPC Dot Matrix
• WPC Fliptronics
• WPC DCS
• WPC-Security (WPC-S)
• WPC-95

Related tips

• Old Williams SA/SG 23-850 coils and their AE/AL replacements
• Williams AE-, AL- and AR- prefixes give the lug positions

Source: Master Cross Reference Chart of Coils for Coin Operated Games (last edited July 25, 2016)