Anyone any idea what the flash lamps should be on a Wms ss. I don't think they're ge89's and they're all missing so that's no help.
Pinball info
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Flashers on space shuttle
- Thread starter paddythegreek
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- Joined
- Jul 21, 2011
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Probably #1251 but haven't checked
OP
OP
Dammed if I can find any info in the manual
There is mention of bulb types in this thread that may be of some help
https://pinside.com/pinball/forum/topic/space-station-relay-wiring-information-needed
https://pinside.com/pinball/forum/topic/space-station-relay-wiring-information-needed
i can check mine Saturday as didn't change any flashers to LEDs
OP
OP
Cheers Steve.
The article mentions 1251 bulbs but it's relating to a Space Station not shuttle.
The article mentions 1251 bulbs but it's relating to a Space Station not shuttle.
- Joined
- Jul 21, 2011
- Messages
- 2,468
Are these the ones that are wired in series. If they're in series I think they're 6v #63
OP
OP
Nope they have a 2.2 and a 330 ohms resistors in the circuit
Hi, paddy,
I think Space Shuttle would have the flashbulbs wired in series; Williams continued to do this into the system 11 era. Fire was the first game with the lamps in parallel, requiring a higher value limiting resistance. The ones at work ate flashbulbs until I changed the resistors.
As you'd expect, with flashbulbs in series a failure of one lamp knocks out the pair, but the resistances of the bulbs is added together, so the limiting resistor (the 2R2) needn't be as high as for lamps in parallel. With 28v solenoid power being used, a pair of #89 (12v) lamps would be bright, while a pair of #63 6v would be brighter.
The #1251 bulb is meant for situations where the lamp(s) remain lit, such as Pin-Bot's eyes, and three of the rear panel lamps on Space Station
I think Space Shuttle would have the flashbulbs wired in series; Williams continued to do this into the system 11 era. Fire was the first game with the lamps in parallel, requiring a higher value limiting resistance. The ones at work ate flashbulbs until I changed the resistors.
As you'd expect, with flashbulbs in series a failure of one lamp knocks out the pair, but the resistances of the bulbs is added together, so the limiting resistor (the 2R2) needn't be as high as for lamps in parallel. With 28v solenoid power being used, a pair of #89 (12v) lamps would be bright, while a pair of #63 6v would be brighter.
The #1251 bulb is meant for situations where the lamp(s) remain lit, such as Pin-Bot's eyes, and three of the rear panel lamps on Space Station
