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Episode 352 - Hard Tilt vs. Soft Tilt

For Amusement Only EM and Bingo Pinball Podcast·podcast_episode·8m 24s·held·Feb 26, 2016
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Analysis

claude-haiku-4-5-20251001 · $0.016

TL;DR

Hard vs soft tilt mechanics in Bally bingo machines and troubleshooting a stuck-tilt Double-Up.

Summary

Nick Baldridge explains the two types of tilt mechanisms in Bally bingo machines: hard tilt (immediate game termination via trip relay) and soft tilt (anti-cheat relay disengagement without full trip), which became prevalent after ~1960 with the introduction of 8-step timers. He discusses how soft tilt allows game revival and extra ball opportunities, contrasting with the irreversible hard tilt. Baldridge shares his recent repair of a Double-Up bingo machine stuck in hard tilt, caused by improperly adjusted switches on the trip relay.

Key Claims

  • Hard tilt occurs when the plumb bob hits the slam tilt switch ring, causing the trip relay to drop out and terminate the game immediately.

    high confidence · Nick Baldridge, describing hard tilt mechanism in Bally bingo machines

  • Soft tilt displays a tilt indicator but does not engage the tilt trip relay; instead, it disengages the anti-cheat relay on machines with 8-step timers (post-~1960).

    high confidence · Nick Baldridge, technical explanation of soft tilt operation

  • Bally switched from 40-step timers to 8-step timers around 1960, introducing soft tilt functionality and enabling player revival of the game from a soft tilt state.

    high confidence · Nick Baldridge, historical technical development

  • Double-Up machine was stuck in hard tilt due to improperly adjusted switches on the trip relay that were only partially making contact.

    high confidence · Nick Baldridge, describing his repair of his own Double-Up machine

  • When a machine is hard-tilted, there is no way to revive it; from soft tilt, the game can be revived through multiple methods depending on circuit engagement.

    high confidence · Nick Baldridge, comparing hard and soft tilt recovery options

Notable Quotes

  • “You have a hard tilt, and you have a soft tilt. Now a hard tilt is what you might think of as a traditional tilt. You nudge the machine a little too hard and a trip relay drops out and all of a sudden the game goes dead.”

    Nick Baldridge@ 1:20 — Core definition of hard tilt mechanism

  • “The soft tilt is when you turn the game on initially it will show tilt on the back glass but the tilt trip relay is not actually tripped.”

    Nick Baldridge@ 1:55 — Core definition of soft tilt; key distinction from hard tilt

  • “Bally was very clever. Don Hooker and the engineers over at Bally really, really considered these games carefully.”

    Nick Baldridge@ 6:57 — Attribution of design philosophy to Bally engineers, including Don Hooker

  • “When Bally switched to the 8 timer it really caused some interesting bugs in their hardware timing that they hadn't really thought about.”

    Nick Baldridge@ 6:10 — Acknowledgment of unintended consequences of the 8-step timer transition

  • “Once the game is hard-tilted, there's no way to revive it. From a soft tilt, you can revive a number of different ways.”

    Nick Baldridge@ 6:37 — Key functional difference between hard and soft tilt recovery

Entities

Nick BaldridgepersonDouble-UpgameBallycompanyDon HookerpersonJeffrey Lawtonperson[name withheld pending review]personSophiepersonFor Amusement Onlyorganization

Signals

  • ?

    gameplay_signal: Hard tilt vs. soft tilt represents two distinct rule states in EM bingo machines with different player recovery paths and scoring implications

    high · Nick explains hard tilt as game-ending, soft tilt as revivable with extra ball opportunities; soft tilt introduced after ~1960 with 8-step timer

  • ?

    product_concern: Trip relay switches on Double Up were improperly adjusted, causing intermittent hard tilt state where machine would not coin back up

    high · Nick diagnosed and fixed switch adjustment issue on his Double Up; problem was intermittent, indicating marginal switch contact

  • ?

    design_innovation: Soft tilt introduced by Bally as anti-cheating measure that could also enable player recovery, adding strategic depth vs. hard tilt's irreversible termination

    high · Nick explains soft tilt disengages anti-cheat relay while displaying tilt light; allows game revival under player control

  • ?

    historical_signal: Bally's transition from 40-step to 8-step timers around 1960 introduced soft tilt functionality and unintended hardware timing bugs

    high · Nick notes timing issues from 8-step timer transition; mentions interview with Jeffrey Lawton and Robert Bainel touching on these bugs

  • ?

    restoration_signal: Trip relay switch adjustment required careful diagnosis of intermittent contact issues; cleaning and tightening switches resolved the stuck-tilt problem

    high · Nick describes taking trip relay apart, checking cleanliness, adjusting switch tension, and reassembling to fix coin-up failure

Transcript

groq_whisper · $0.025

0:00
what's that sound it's for amusement only the em and bingo pinball podcast welcome back to for amusement only this is nick baldridge tonight i spent a little time and fixed a problem with my double up that had been happening since the bingo row and all the movement, commotion, falling, you know, all that good stuff that happened to the head of it. So, what was happening is the machine would be stuck in tilt. Now, what I wanted to talk about tonight, though, was not this particular problem, but the two kinds of tilt that bingo machines have, there are many ways that ballet bingos in particular were able to figure out if someone was attempting to cheat.
1:05
Over time, they developed even more, but one of the easiest and simplest ways are the two different kinds of tilt. You have a hard tilt, and you have a soft tilt. Now a hard tilt is what you might think of as a traditional tilt. You nudge the machine a little too hard and a trip relay drops out and all of a sudden the game goes dead.
1:34
That's what I call a hard tilt. And it works the same in a bingo. So you have the plumb bob tilt. It hits the ring where you have your slam tilt. switch and that opens or closes and that will cause the trip relay to drop out and that will tilt your game But there also the soft tilt and the soft tilt is when you turn the game on initially it will show tilt on the back glass but the tilt trip relay is not actually tripped
2:12
And this is on later games with an 8-step timer. Games with a 40-step timer, the timer will continue to advance until it hits the limit switch. but on the games made after about 1960 now we switch to the 8 step timer and in this case the game will soft tilt and the only thing that happens is that the anti-cheat relay is not engaged and therefore the tilt light will display but it's not actually hard tilted the tilt trip is not engaged.
  • ?

    design_philosophy: Don Hooker and Bally engineers deliberately designed soft tilt to enable game revival and extra ball opportunities, increasing player engagement vs. older hard tilt-only design

    medium · Nick credits Bally engineers with careful consideration of game mechanics; notes shift from forced hard tilt to player-controlled revival

    • 2:58
    And so there's an entire different circuit that will handle coining up from the soft tilt state versus the hard tilt state. And this actually was the problem that I fixed tonight.
    3:12
    If the game went into a hard tilt, it wouldn't coin back up, no matter what I did. well the issue is that the two switches which are normally open and when the tilt trip drops out become closed are supposed to power alternate circuits to allow the coin switch to receive power and the buttons on the front of the game if you have replays on the register unfortunately neither of those was working properly so So, what I ended up doing is taking that trip relay apart,
    3:54
    looking at those switches, they were pretty clean, but I adjusted them to be a little bit tighter, reassembled, and all was well.
    4:06
    And the switches were very close They were not very far off of adjustment because occasionally you would turn it on and it would actually function for a while until it was hard tilted and then it would stop. Or sometimes it wouldn't and that's the nature of an intermittent problem that's caused by a switch which is only partially making.
    4:36
    Now, the other thing that can cause this soft tilt state is related to how the games end with an 8-step timer.
    4:48
    The timer times out, and the machine goes into a different kind of soft tilt. It's one where it shuts off the motors. and this soft tilt is engaged by the 8th step on the timer unit itself but in this case it doesn't light the tilt light on the back glass indicating to the player or the person who steps up to the game that it can be revived and played from there or you can play for extra balls at that point it's a pretty interesting thing to think about the change from the 40 step with a hard tilt that's forced upon the player at the time that the game decides versus these games with the R button from 1960 plus where under player control you can revive the game bring it back to life continue playing if you want, earn additional balls, and then score in ways that you couldn't previously.
    6:03
    It's pretty interesting. And of course, if you've listened to some of my other podcasts about the problems that this has caused, and my recent interview with Jeffrey Lawton and Robert Bainel we touch on this subject as well When Bally switched to the 8 timer it really caused some interesting bugs in their hardware timing that they hadn't really thought about.
    6:31
    But, for the most part, it's an excellent idea. Because once the game is hard-tilted, there's no way to revive it. From a soft tilt, you can revive a number of different ways, and it all depends on what's engaged, what's disengaged, and how those circuits interact.
    6:57
    Bally was very clever. Don Hooker and the engineers over at Bally really, really considered these games carefully. Well, the good news is Double Up is fully functional again, which will make Sophie very happy. That's her favorite game.
    7:17
    And I managed to get a 64 replay hit after putting in about 35 credits. So I came out ahead just barely, I guess. I posted that to Facebook. Then I put another 5 credits in and got another 64 replay hit. So that worked out pretty well after a time, but it didn't look good at first.
    7:45
    Well, that's all for tonight. Thank you very much for listening. My name again is Nick Baldridge. You can reach me at 4amusementonlypodcast at gmail.com, or you can call me on the bingo sign. That's 724-BINGOS-1, 724-246-4671. You can listen to us on iTunes, Stitcher, Pocket Casts, VRSS, on Facebook, on Twitter at Bingo Podcast. You can follow me on Instagram, also at Bingo Podcast. Or you can listen to us on our website, which is foramusementonly.libsyn.com. Thank you very much for listening, and I'll talk to you next time.