Williams Solved Firepower II (Williams, 1983) bulb question

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aborup

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On my playfield, one bulb (Orbit complete) is different than all the rest. In fact, it is part of the solenoid diags, but I'm not sure why. Anyway, I don't know what type of bulb to get. Socket is bigger than the other type 44s
 
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Hello aborup,
this is a flasher lamp. Williams used #89 (12...13V) or #1251 (28V) incandescent lamps, depending on the circuit. Flashers are always treated, driven and tested like solenoids.
See p43 of the operation manual: the schematics contain the 'solenoid' named '8L2 ORBIT COMPLETE FLASH LAMPS'. The supply voltage SOL.B+ (+28V) is also there, so this is supposed to be one or several #1251 lamp(s). This may also be printed on the lamp socket.
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Hello aborup,
this is a flasher lamp. Williams used #89 (12...13V) or #1251 (28V) incandescent lamps, depending on the circuit. Flashers are always treated, driven and tested like solenoids.
See p43 of the operation manual: the schematics contain the 'solenoid' named '8L2 ORBIT COMPLETE FLASH LAMPS'. The supply voltage SOL.B+ (+28V) is also there, so this is supposed to be one or several #1251 lamp(s). This may also be printed on the lamp socket.
 
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