(Topic ID: 240876)

Need help sourcing relay switch parts


By PatrickATX

8 days ago



Topic Stats

  • 6 posts
  • 3 Pinsiders participating
  • Latest reply 8 days ago by PatrickATX
  • No one calls this topic a favorite

You

Linked Games

#1 8 days ago

My 1962 Williams Coquette needs some new score reset relay switches since the contacts are worn down. Anyone have advice on sourcing some leafs and contacts for the M style relays? The only thing I found with the correct holes are Gottlieb parts (https://www.marcospecialties.com/pinball-parts/A-4987) but the matching leaf is not available.

Thanks

#2 8 days ago

Pinball Resource shows loose switch parts including just the contacts at http://pbresource.com/pfswitch.htm (look for "Common Switch Parts" near the bottom). Or you could pick up a couple of old M relays on the EM seeking parts thread (https://pinside.com/pinball/forum/topic/the-em-seeking-parts-thread), or on ebay. Are you sure you need new contacts though? Worn contacts aren't that common.

/Mark

#3 8 days ago

No matter how I clean and adjust the contacts, I get arcing, so I thought I'd replace them. Is there a trick/process to removing old contacts? Nippers? I have put them into new leafs, but never tried to remove old ones?

#5 8 days ago

If you have to you might be able to file off the backs of the contacts where they've been flattened out.

But arcing between contacts is a fact of life in most EM games. If you open a switch in a circuit where there's enough current running through the coil the current will keep flowing even after the switch has opened until enough voltage has built up on one contact to jump across the air gap to the other contact - kind of like a static spark between your finger and a light switch after you've shuffled across the carpet. New contacts won't change that.

If you're familiar with capacitors and how the voltage across them can't change instantly, coils (or inductors) behave the same way with current. The current through the coil can't change instantly but needs a short period of time to increase or decrease just like the voltage on a capacitor.

Or in other words, save your money and enjoy your game until something fails.

/Mark

#6 8 days ago

Thanks Mark. The actual issue is that the P1 reset relay coil chirps loudly enough to be annoying. I've put in a new coil, and adjusted the 3 switches like mad, but still can't quiet it down. So I thought I would redo the contacts/leafs.

Promoted items from the Pinside Marketplace
From: $ 5,799.00
Pinball Machine
Great American Pinball
From: $ 218.00
$ 35.00
From: $ 40.00
Lighting - Interactive
Professor Pinball
$ 175.00
Lighting - Interactive
Professor Pinball
$ 69.99
Playfield - Toys/Add-ons
Lighted Pinball Mods
$ 49.95
Playfield - Toys/Add-ons
pinballmod
$ 99.99
Playfield - Toys/Add-ons
Lighted Pinball Mods
$ 130.00
Playfield - Toys/Add-ons
Rods Mods
$ 99.99
Playfield - Toys/Add-ons
Lighted Pinball Mods
From: $ 9.99
$ 999.00
Pinball Machine
Mircoplayfields
$ 159.99
Lighting - Other
Lighted Pinball Mods
$ 8,500.00
Pinball Machine
PinballSTAR Amusements
$ 999.00
Flipper Parts
Mircoplayfields
$ 109.99
$ 36.99
Lighting - Interactive
Lee's Parts
$ 44.95
Playfield - Toys/Add-ons
PinBoss Mods
$ 69.99
Playfield - Toys/Add-ons
Lighted Pinball Mods
$ 110.00
Cabinet - (Alt) Translites
Pin Mods
$ 40.00
Cabinet - Other
ModFather Pinball Mods
From: $ 99.99
$ 48.00
Cabinet - Other
ModFather Pinball Mods
$ 199.99
Lighting - Led
PinballBulbs

Hey there! Got a moment?

Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside