(Topic ID: 237125)

Advice on coils for bally loop the loop

By grandadpinball

5 years ago


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#4 5 years ago
Quoted from currieddog:

Do you have a high quality scan of the schematic you can post?

Yes, OP, please post one. If you have the schematic you can get a high quality scan of it from (for example) Staples ($2) or Kinkos ($6)

#5 5 years ago
Quoted from chas10e:

http://www.planetarypinball.com/reference/partsmanuals/BLY_Parts_1969/index.html#/45/zoomed
Looks like the Hold relay is part # c-7800-335 https://www.marcospecialties.com/control/keywordsearch?SEARCH_STRING=C-7800-335
The 2'nd coin (same as 1'st & 3'rd coin ) chute # c-7800-384 https://www.marcospecialties.com/control/keywordsearch?SEARCH_STRING=C-7800-384
You would have to see the value of the resistor on the schematic but a fantastic post here about it & what it does https://pinside.com/pinball/forum/topic/what-is-this-4#post-3358932

Note that on this era of Bally flipper games, the hold relay is energized and the Tilt or slam switches literally short the hold relay hot wire to ground causing the relay to drop. It also causes one helluva spark when the switch is "made".

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