zlacker

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1. intoth+(OP)[view] [source] 2024-10-07 13:47:52
This reminds me of exploits we used to do to arcade cabinets back in Sydney in the 80's and 90s. The school gas heaters used to have what we called "clickers", piezoelectric ignition devices you could remove from the heaters.

You then took that clicker to your local arcade, and clicked one of the corners of the CRT, that would send a shock through the system and add credits to your game. I believe this was because the CRT was grounded on the same ground lines that the mechanism for physically checking a coin had gone through the system.

Suffice to say, they caught onto this over time, and added some form of an alarm into it. But up until then... Those were truly the best times.

replies(8): >>chasd0+Q >>gianca+85 >>luisme+Cc >>astros+hn >>TowerT+Us >>roymur+IC >>j0hnyl+b51 >>beefle+la1
2. chasd0+Q[view] [source] 2024-10-07 13:53:51
>>intoth+(OP)
This brings back a vague memory of smacking the side of a pinball machine just right and getting a free game. I bet it was the same concept.
replies(3): >>intoth+B4 >>devmor+e5 >>candle+i9
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3. intoth+B4[view] [source] [discussion] 2024-10-07 14:19:21
>>chasd0+Q
I imagine (with zero research) that the mechanism for adding credit would be the coin goes through a slot, and either itself completed a circuit, or the coin as it travels moves some lever to complete a circuit. So I imagine if you hit the machine just right, you'd also move that lever.
4. gianca+85[view] [source] 2024-10-07 14:23:50
>>intoth+(OP)
Reminds me of an arcade machine a friend would get behind, turn it off and back on, and it would give you a free token. Maybe its designed that way so the employee can test it for free, not sure. But he climbed behind it, and proceeded to play for free.
replies(2): >>IWeldM+E8 >>everfo+mf
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5. devmor+e5[view] [source] [discussion] 2024-10-07 14:24:28
>>chasd0+Q
You were likely causing the spring-loaded mechanism that detects a coin insertion to make physical contact.
replies(1): >>wgrove+X7
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6. wgrove+X7[view] [source] [discussion] 2024-10-07 14:41:18
>>devmor+e5
Yup - the first few minutes of one of Technology Connections' videos on electromechanical pinball machines shows this mechanism in action:

https://www.youtube.com/watch?v=E3p_Cv32tEo

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7. IWeldM+E8[view] [source] [discussion] 2024-10-07 14:45:50
>>gianca+85
Those who lived in USSR remembers soda vending machines (they poured your drink in a glass cup; you were expected to wash it before using by pressing on a cup, which stood upside down on plastic plate with holes, kinda inverted shower head; very unhygienic, I know). Well it had a button behind that let you have a free drink. You could also "upgrade" pure carbonated water (1 kopeyek) to a sweet soft drink (3 kopeyek) by pressing another button. needless to say schoolchildren would abuse the hell out of this "feature".
replies(2): >>jcrash+Wf >>everfo+Lg
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8. candle+i9[view] [source] [discussion] 2024-10-07 14:49:46
>>chasd0+Q
Just like The Fonz.
replies(1): >>DonHop+Kq
9. luisme+Cc[view] [source] 2024-10-07 15:08:36
>>intoth+(OP)
This trick worked in Telefonica's phone booths in Spain in the 90s too :-)
replies(2): >>chrisw+Qi >>zxexz+Fp
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10. everfo+mf[view] [source] [discussion] 2024-10-07 15:23:32
>>gianca+85
I believe some of those early arcade games were more electrical engineering than software engineering, so perhaps it was easier to set it up that way?

To my understanding some of those early arcade games also had jumpers to control some of the behavior. It could be that a tech set the "free credit on reboot" jumper and forgot to reset it when they were done.

replies(1): >>gianca+sX3
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11. jcrash+Wf[view] [source] [discussion] 2024-10-07 15:26:20
>>IWeldM+E8
> pressing on a cup, which stood upside down on plastic plate with holes, kinda inverted shower head

I think they still use these in bars

https://barsupplies.com/collections/glass-washers

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12. everfo+Lg[view] [source] [discussion] 2024-10-07 15:30:57
>>IWeldM+E8
> you were expected to wash it before using by pressing on a cup, which stood upside down on plastic plate with holes, kinda inverted shower head; very unhygienic, I know

Those systems are occasionally used in bars in the US, though they've dropped the whole plate and it's usually just arms where the holes are.

To my understanding, at least in the US, they aren't used for deep-cleaning anything. That happens with soap and water in the back still. The upside-down-showers are used to clean out the dregs of someone's glass when they get a refill (you give them a glass, they give it a quick rinse, refill it and hand it back), and as a quick rinse for new glasses to clean up water stains/detergent residue and anything that might have fallen in since they were cleaned (hair, dust, etc).

replies(3): >>baud14+cj >>IWeldM+Hj >>JamesS+sy
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13. chrisw+Qi[view] [source] [discussion] 2024-10-07 15:45:06
>>luisme+Cc
I vaguely remember (sometime in the 80s) sticking a straightened paperclip into a small hole on the face of a payphone to avoid having to drop a dime / quarters, and being able to call anywhere.
replies(1): >>8ig8+cu
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14. baud14+cj[view] [source] [discussion] 2024-10-07 15:47:04
>>everfo+Lg
I think for beer there's a reason of bringing the glass to a colder temperature, which (from what I've heard) should reduce the amount of foam (not sure that's the exact term) in the glass.
replies(2): >>everfo+aF >>mschus+OI2
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15. IWeldM+Hj[view] [source] [discussion] 2024-10-07 15:49:52
>>everfo+Lg
Yes right, the key difference that the were used to clean between uses by different customers; this is clearly insufficient; at least because a good deal of customers - drunks, children, people with mental issues would not wash at all before use, a good vector for disease spread. Late USSR I happen to remember always had problems with hepatitis spread, which is considerably less of a problem today, due to adoption of disposable food containers/utensils.
16. astros+hn[view] [source] 2024-10-07 16:09:22
>>intoth+(OP)
This also worked in the USA. By the 1990s most arcades operated on proprietary tokens rather than coin currency. Many had skill-gambling machines that had sliding rows covered in tokens, that you would try to dislodge with your own tokens and keep what was displaced.

The "Jungle Jive" version of this would dispense tokens out the opposite side of the machine if the electric ignition of a cigarette lighter was used to lightly shock the metal intake slot. If you clicked it too much too quickly it would go into an alert mode. While this could be accomplished solo, the ideal MVP setup was a team of three: one scout to watch for employees, one to click, and one to collect.

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17. zxexz+Fp[view] [source] [discussion] 2024-10-07 16:19:26
>>luisme+Cc
I remember when Verizon phone booths in the US started accepting the credit cards, for a while they would accept any 16-digit number with a valid IIN that passed the Luhn check.
replies(1): >>Scound+Kd1
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18. DonHop+Kq[view] [source] [discussion] 2024-10-07 16:24:19
>>candle+i9
Henry Winkler is actually just as cool as the character he played!
19. TowerT+Us[view] [source] 2024-10-07 16:34:25
>>intoth+(OP)
We did the exact same thing early 80's except that we used the clicker found in disposal lighters.

We did it for a couple of years until they figured it out and started to conver the arcade cabinets with transparent plastic.

At the same time they also drilled holes at the back of the machine for ventilation as the rest of the case now was sealed in plastic.

We found out that using a bamboo stick you could press the lever that register when a coin has been paid into the slot.

That made them relocate the holes for the ventilation to the top of the case instead of the back so we couldn't get the lever anymore. Or so they thought. haha

We discovered that by pressing a coin up the return slot — the one where you get your coin back if it isn’t accepted — you could also trigger the lever for coin registration and the free gaming continued.

Eventually they put in sharp screws into that coin return box so you would cut your finges.

After that we got a SEGA. Was great fun :)

replies(2): >>jacobg+ew >>throaw+np1
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20. 8ig8+cu[view] [source] [discussion] 2024-10-07 16:40:59
>>chrisw+Qi
If I recall, you’d stick the straightened paperclip into one of the holes on the mouthpiece and touch the other end of the paperclip to some metal part on main phone body.

War Games used a pull tab from an aluminum can to a similar effect?

(It’s been a while.)

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21. jacobg+ew[view] [source] [discussion] 2024-10-07 16:49:42
>>TowerT+Us
At what point does the arcade just kick you out? I can't imagine them seeing you continuously tamper with their equipment to circumvent paying and think, "the best way to handle this is to keep modifying our machines."
replies(3): >>an_ko+rA >>cutemo+wF >>bityar+xU
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22. JamesS+sy[view] [source] [discussion] 2024-10-07 16:59:55
>>everfo+Lg
Its been a long time since I worked in a bar, but in the front-of-house we used a three-sink station where the sinks were: soap, water, sanitizing-solution. Then you sit the glasses to drip-dry.

Actually here is a link explaining it: https://www.webstaurantstore.com/article/620/three-compartme...

replies(1): >>stavro+rF
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23. an_ko+rA[view] [source] [discussion] 2024-10-07 17:09:15
>>jacobg+ew
If you kick someone out, you lose them as a customer, and they'll tell all their friends about the free play trick out of spite, so you'll have to patch the machine anyway.
replies(1): >>jacobg+TB
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24. jacobg+TB[view] [source] [discussion] 2024-10-07 17:16:48
>>an_ko+rA
You're making me wonder what the stats are for how many people try to abuse arcade machines in a country like Japan versus the United States. (Not that people in any country are gonna be entirely honest, but the entitlement to break the system and the comfort to brag about it seems cultural.)

In fact, that could be why some of the machines weren't better protected against that stuff in the first place, right?

replies(1): >>szvsw+j81
25. roymur+IC[view] [source] 2024-10-07 17:20:09
>>intoth+(OP)
super cool
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26. everfo+aF[view] [source] [discussion] 2024-10-07 17:30:45
>>baud14+cj
Oh, are the lines refrigerated or otherwise thermally controlled? I always presumed it was regular tapwater; i.e. probably slightly below room temp, but not much.

Mileage obviously varies, but the "beer nerd/snob" bars I've been to simply don't re-use glasses without a full wash. They'd rather just charge a little more to hire more dishwashers and be able to absolutely guarantee that there's no leftover beer/water in your glass when they refill it, and that the glass is refrigerated if that's something they want.

I've always heard the head/foam had more to do with how you pour the beer (more impact/movement = more foam), but it makes sense that temperature affects it as well. There's some kind of official course on how to pour Guinness to get the correct head on it. I don't remember the whole thing, but it was something about holding the glass the correct distance from the tap and tilting it so that the beer "slides" down the side of the glass rather than a direct perpendicular impact with the beer already in the glass (which makes more foam).

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27. stavro+rF[view] [source] [discussion] 2024-10-07 17:31:38
>>JamesS+sy
I've seen something like this in the Netherlands, although even more disgusting: They take the used glass, dunk it in a bucket that has brushes all around and in the middle and is full of soapwater, rotate the glass three times against the glass, take it out, and pour the beer in the glass.

Yes, the glass's sides are still full of the disgusting soapwater from the bucket that's now basically 95% other people's drink dregs.

replies(2): >>heaven+pv1 >>everfo+wf4
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28. cutemo+wF[view] [source] [discussion] 2024-10-07 17:32:17
>>jacobg+ew
Maybe the staff at the arcade, aren't the owners of the place, so they don't personally care that much. They'd rather be friends with everyone, than to be the "angry police"? (And I'm guessing the tampering players were nice people to have around)

And the technicians "improving" the machines -- maybe they had a good time too, I'm wondering. @TowerTall and friends made their job more interesting / fun?

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29. bityar+xU[view] [source] [discussion] 2024-10-07 18:45:26
>>jacobg+ew
Arcades were big dark noisy rooms, and quite often had only one or two people on staff who were usually either busy dealing with other customers and were paid far too little to care about the owners' profit margins. They were basically there to hand out prizes to little kids for the ticket machines and make sure nobody walked out with Dig Dug on a hand cart.
replies(1): >>TowerT+eO1
30. j0hnyl+b51[view] [source] 2024-10-07 19:45:12
>>intoth+(OP)
I remember reading about this in this book, about the hacker named Pengo who was known for adding credits to arcade games in the same manner.

https://www.amazon.com/CYBERPUNK-Outlaws-Hackers-Computer-Fr...

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31. szvsw+j81[view] [source] [discussion] 2024-10-07 20:02:29
>>jacobg+TB
There are some great scenes in Rebels of the Neon God [1992] by Tsai Ming-Liang (Taiwanese filmmaker) where the main characters steal the main pcbs from some arcade machines and try to resell them to the arcade owner lol. Wonderful film, recommend it - some great scenes in those arcades.
32. beefle+la1[view] [source] 2024-10-07 20:12:03
>>intoth+(OP)
how did you stumble across this one?
replies(1): >>beAbU+ma2
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33. Scound+Kd1[view] [source] [discussion] 2024-10-07 20:28:42
>>zxexz+Fp
Toronto’s parking meter boxes were like this. They just had GPRS so they’d do an overnight dump (possibly a part of their data deal with the telecom back when data was actually saturated during the day).

So people were using cancelled or empty prepaid visa/mastercards.

Initially they’d just push out blacklists.

Once they really caught on, they did a firmware upgrade to do online verification and it took fooooreeeeveeeeerrrrr to do a credit card purchase.

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34. throaw+np1[view] [source] [discussion] 2024-10-07 21:46:56
>>TowerT+Us
I always wondered why arcade cabinets were covered in plastic. Till now i thought it was for spills or something.
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35. heaven+pv1[view] [source] [discussion] 2024-10-07 22:28:25
>>stavro+rF
People in the UK bery often do the whole "washing dishes in the bucket" thing which is ridiculous
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36. TowerT+eO1[view] [source] [discussion] 2024-10-08 01:30:05
>>bityar+xU
In our case the arcades was in a ajourning room to our local cinema with no staff present and no CCTV so we had plenty of time to fiddle with the machines.
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37. beAbU+ma2[view] [source] [discussion] 2024-10-08 06:22:36
>>beefle+la1
Children in a large group that's unsupervised is about as close to infinite monkeys on infinite typewriters as you can get. If you present them with a challenge that has some tangible reward at the other end (free games), you are guaranteed a solution at some point.

The universe's RNG just happened to roll favourably in Sydney in the 90s and the rest is history.

replies(1): >>brainb+7I2
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38. brainb+7I2[view] [source] [discussion] 2024-10-08 12:04:24
>>beAbU+ma2
Reminds me of the story of the kids in Ethiopian village that were given tablets by One Laptop Per Child. The kids had figured out how to turn it on within minutes, in five days they were using 47 apps per child, in two weeks they were singing the English alphabet, and then within five months they had hacked Android. https://www.theregister.com/2012/11/01/kids_learn_hacking_an...
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39. mschus+OI2[view] [source] [discussion] 2024-10-08 12:10:14
>>baud14+cj
For Weizen beer, you always give the glass a quick rinse beforehand to get rid of detergent remains, so you can actually get a foam "crown" - if there is even the tiniest amount of detergent present, the foam collapses.
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40. gianca+sX3[view] [source] [discussion] 2024-10-08 19:57:16
>>everfo+mf
Maybe they never reset it since it was too convenient to let employees just do it every morning, not sure, but yeah I think you might be right.
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41. everfo+wf4[view] [source] [discussion] 2024-10-08 22:12:16
>>stavro+rF
I certainly won't be first in line for that beer, but I'd wager that from a hygiene perspective they're cleaner than the door. It takes surprisingly little to sanitize dishes; that 3 part system is basically lightly scrubbing twice, and then either using a sanitizer or 30 seconds or more in water over 171F.

From a health perspective, I'd be more worried about the leftover sanitizer in the water in the glass. Bleach is pretty common, and it's honestly a tossup whether I'd rather drink someone else's dregs or bleach. It's probably the dregs, I'll take a stomach flu over melting my stomach lining with chronic low-grade bleach exposure.

replies(1): >>stavro+If4
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42. stavro+If4[view] [source] [discussion] 2024-10-08 22:13:57
>>everfo+wf4
I'm fairly sure it's just dish soap in there, so it's not really a risk. Disgusting, though.
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