The Hidden Enemy Of Pinball Flippers.

Dirtypool Pinball·video·4m 38s·analyzed·Jul 6, 2026

Analysis

claude-haiku-4-5-20251001 (batch) · $0.009

TL;DR

Technical deep-dive on coil fade physics and active cooling solutions for pinball flippers.

Summary

Dirtypool Pinball provides a technical explanation of coil fade (flipper fade) in pinball machines, demonstrating through collaborative testing with PinMAME that flippers lose efficiency as solenoid coils heat up during extended play. The video shows that coils reach critical temperature (~150°F) after 45 minutes to an hour and take approximately 6 hours to cool back to ambient temperature, making active cooling solutions like PinMonk fans essential for tournaments, expos, and high-play-volume venues.

Key Claims

Flipper coils reach critical temperature around 150°F after 45 minutes to 1 hour of continuous use
high confidence · Dirtypool Pinball, based on direct testing with temperature probes
Coils take approximately 6 hours to cool from critical temperature (150°F) back to ambient room temperature (75°F)
high confidence · Dirtypool Pinball, documented through time-lapse footage and measurement
Active cooling fans (like PinMonk) prevent coil temperatures from exceeding 85°F even during intense play
high confidence · Dirtypool Pinball, based on control testing with fan-equipped machine
Flipper fade becomes noticeable when coil temperature exceeds approximately 110°F
medium confidence · Dirtypool Pinball, with caveat that many variables affect this threshold
Games like 007 exhibit visible flipper fade symptoms (difficulty making distant ramps) as coils heat up
medium confidence · Dirtypool Pinball, anecdotal observation of gameplay effects

Notable Quotes

“It took 6 hours for the coil to actually cool down to a meaningful temperature.”
Dirtypool Pinball @ ~3:30 — Key finding demonstrating the practical impossibility of coil recovery during tournament play
“You never get over 85°, at least in the control test that I did, meaning that the coil temperature, no matter how much you're firing it off, the active cooling of the fans prevents it from getting it basically above a certain baseline.”
Dirtypool Pinball @ ~5:15 — Central claim about effectiveness of active cooling solution
“The reality is is that active cooling is extremely important.”
Dirtypool Pinball @ ~4:50 — Direct conclusion about necessity of cooling for serious play
“It's almost irrelevant once a game in a tournament setting gets up to temperature for it to even get down to like reasonable temperature.”
Dirtypool Pinball @ ~4:10 — Observation about practical limitations of passive cooling in competitive contexts

Entities

Dirtypool Pinballperson PinMAMEpersonPin Monkcompany007game

Signals

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technology_signal: Active cooling fans (PinMonk brand) represent emerging aftermarket solution to coil fade problem, with market potential for tournaments, venues, and high-play-volume collectors
high · Video demonstrates effectiveness of fan-based cooling; multiple cooling solutions discussed as viable options
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operational_signal: Coil fade creates operational challenge for venues and tournament operators hosting long gaming sessions; active cooling becomes essential infrastructure for competitive play
high · Video explicitly recommends fans for 'if you are a company that has games at an expo' and tournament settings
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gameplay_signal: Coil fade introduces unplanned difficulty variance into extended play sessions, affecting shot consistency and game balance over time
high · Example of 007 ramp becoming increasingly difficult to complete as coils heat; acknowledged as 'real problem' in tournaments
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product_concern: Flipper fade is systemic mechanical limitation affecting all pinball machines during extended play, not a manufacturing defect but inherent physics constraint
high · Video frames as fundamental solenoid physics problem ('heat resistance') affecting all machines
?
content_signal: Dirtypool Pinball producing high-value technical/educational content on pinball mechanics; emphasis on empirical testing and collaboration with community members
high · Collaborative testing with PinMAME, temperature probes, time-lapse documentation, explicit educational framing

Transcript

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0:08

What is coil fade or flipper fade? It's

0:08

What is coil fade or flipper fade? It's simply just as you use your flippers in a pinball machine, they get hotter. And when they get hotter, they become less efficient. It becomes harder to hit shots. And in a just tournament setting or on games that have a really long play time, it can be a real problem. So, to understand what coil fade is, we need to understand what a solenoid is. And it's pretty simple. A solenoid is just a coil wrapped around a piece of plastic. It's a tube that when it gets energized, it creates a magnetic field and it yanks anything metal inside of it. In this case, everything in a pinball machine is driven by a solenoid. They do everything from reset drop targets or fire the ball out of the shooter lane, pop bumpers, flippers themselves, the actual linkage is driven by a solenoid. So, when you press a flipper button, it sends high energy current into the copper coils, creates a magnetic field, pulls the plunger at a super fast speeds, and boom, you've got a moving flipper. That's how it works. Problem is that when you keep doing this over and over and over again in a game, they heat up. And when the mechanism gets hot, they become less efficient. And that's called heat resistance. The electrons have a harder time getting through material the hotter it gets. So, PinMAME and I collaborated on this project. He sent over the probes and necessary things to get the data to find out and see how long this stuff actually happens. So, how long does it take a flipper to cool down? And more importantly, like at what temperature does it even matter, right? So, PinMAME has a bunch of graphs that show where the actual fade begins and where the actual power that gets to the flipper begins to diminish. And you'll see this. You'll see this on games like 007, for example. There's a ramp really far in the back. And as the coil gets too hot, you start to maybe not make it up the ramp all the way. Fades a little more each time and each time. For me, it took about 45 minutes to an hour to hit critical temperature, about 150°. And the amount of time it took to get back down to ambient room temperature, which I had at 75° controlled, 6 hours. That's right. It took 6 hours for the coil to actually cool down to a meaningful temperature. Now, understand like it cools down a lot quicker to begin with and then starts to plateau, which you can see in this time lapse I took. But the reality is is that you're taking it takes hours. It's almost irrelevant once a a game in a tournament setting gets up to temperature for it to even get down to like reasonable temperature. So, this didn't intend to be a video about like, "Wow, coil fan like here buy coil fans. You should get coil fans." But the reality is is that active cooling is extremely important. To make this a complete test, I PinMonk sent me some fans as well and we slapped them on.

2:41

And the results are pretty phenomenal. You never get over 85°, at least in the control test that I did, meaning that the coil temperature, no matter how much you're firing it off, the active cooling of the fans prevents it from getting it basically above a certain baseline. And you're not going to start experiencing flipper fade until it gets a little bit over like 110°. Again, there's so many variables that go into this, ambient room temperature, whatnot. And once a coil heats up, it it gets back up to temperature much quicker again. So, the moral the lesson here is if you play long games, if you're a person who experiences extremely long games, if you're a company that has games at an expo, or if you are somebody who just like really plays a lot of pinball, flipper fans might be a good option for you. So, before you go spend hundreds of dollars on fans, there are cheaper options out there that are like 3D printed solutions. There and you could make shift something. Personally, I like the PinMonk fans because they look fancy and I'm already used to paying ridiculous prices for aftermarket stuff for pinball machines. Having said that, there are other solutions out there and don't feel like that there's only one. Anyways, I hope this semi-scientific video has been helpful to educate or at at give a little bit of insight on how pinball machines work and a little bit of what coil fade is. Uh uh I'll include description links down below for everything that's kind of relevant that I've talked about in the video. I don't usually do this, but the pinball niche is so small and the YouTube algorithm doesn't give a about us. So, if you feel that this video has been of interest to you and you've made it this far, consider a subscribe and all that other good stuff. Uh in the meantime, I'll praise the great pyramid and go play some pinball. >> [music]