Arcade Collecting > Miscellaneous Arcade Talk

What is the purpose of a Slam switch?

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clonestar:

--- Quote from: rchadd on May 31, 2005, 12:05:00 pm ---also my centipede coin door has lockout thingies

--- End quote ---
Most pinballs had lockout coils in the door, I think the purpose of this was to prevent credits being applied during the game, not sure why but as pinball didn't have any sort of "continue" option untill the 90's not a problem.

clonestar:
Ok, I looked a bit further, this lockout served two purposes,

* To lock the coins slots during startup and self test, presumably in case the machine didn't register the credits then plus if it never made it all the way up no money had been lost.
* When maximum credit had been reached to prevent further coins being deposited

rohan:
I wonder of Midway's Space Invaders originally had one of these.  The one at a local arcade gives me credits if I tap firmly on the coindoor, but resets when I do it too hard.

Q*Bert_OP:
Hey, I wired mine up, and it becomes anoying in games like tempest and space invaders.

Stingray:

--- Quote from: rohan on May 31, 2005, 05:27:19 pm ---I wonder of Midway's Space Invaders originally had one of these.  The one at a local arcade gives me credits if I tap firmly on the coindoor, but resets when I do it too hard.

--- End quote ---

I know for sure that the cocktail version has a slam switch, I assume the upright must too. I've never tapped on the coin door on mine to see if I can get it to register free credits. I'll have to try that next time I play it.

-S

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