Soon to be graduating engineer here. I've seen hundreds of these devices on ebay listed as "EMP test bulb generators", apparently for testing light bulbs or for electing enthusiast tinkering
Other sights Ive seen openly list them as cheating devices for slot machines. My question is, are they legal? Is there some FCC regulation against them? If so I would think ebay would shut the sellers down, but like I said there's hundreds of them.
Looks like easy money to me, but I wouldn't want to go to prison over opening an eBay store.
>>913671 Slot machines are computers now. There is no easy sort of manipulation you can do now that won't be detected or just cause it to crash. The only manipulation is around finding bugs in the program that aren't published and are patched quickly.
As far as bulb testers as intended? No idea. They are high voltage low current electicity. Never thought about if they are blasting enough noise to make the FCC care because they are usually novelties and couldn't really be tracked if you're only clicking... Comment too long. Click here to view the full text.
>>913671 It's a high voltage transformer... think tesla coil... or like a slayer exciter circuit ionizes the low pressure gas in fluorescent bulbs ... As far as slot machine cheating. I'm pretty sure that it's not gonna work even if you could get something like that to work security would carry you out within 2 min... cameras man :(
Oh I don't have any interest in using them for slot machines spoofing. I just want to bullied them and sell them as a side hustle to my engineering job. A seller on ebay that I looked into made a few thousand dollars selling them in about two weeks.
My only concern would be if some dumbass got caught with one in a casino and then having the FBI ask him where he got it from. I assume if they're listed as being for educational or recreational... Comment too long. Click here to view the full text.
tested it a bit using the arduino ide. (no atmega, just the esp8255) still haven't used them for something cool yet. i have a big ol' led screen. like 8x96 leds. could be cool to have a screen i could type to over wifi i guess. got too many projects, probably won't happen
You can flash it with NodeMCU or compile a custom firmware. Either way, I've created some automated scripts that build all required tools in a convenient VM. You can find those on GitHub.com/Idorobots/esp8266-ansible
Hey /diy/, I recently found this old Kenwood KR-5030 in the basement along with an old record player so I figured I'd set it up, but when I turn on the 5030 the lights flicker and there's an arcing noise coming from where the power switch/speaker selector knob is. I'm not that good with electronics so I have no clue where to start with this thing.
So I've got a powerhead motor that sits right next to a giant vat of saltwater for its life, and the housing isn't sealed against moisture. So inevitably salt and water are going to get in. What is the best anti seize/galling compound for screws facing salt and high humidity? I've heard good things about ptfe greases and moly disulfide, though the moly seems very overkill for this low temperature application.
On a related note, how can I extract a seized and slightly stripped 3mm screw?
I'm looking at the #1 grabit which says it works on screws down to 3mm. Will it be able to get out a seized screw? I can't take a torch to it as it would demagnetize the magnet the screw is holding on and quite possibly damage the motor directly beneath.
marine non-metallic is the stuff, it's not the best anti-seize or anti-galling compound but it's the most resistant to warm salty water.
ez-outs are for times when the head is reamed out but the thread is free to turn, if you could only reach down in there and grab it. using one on a seized screw will snap the ez-out off in the hole and then you're ker-fucked. a left hand drill is what you want.
Is there any way to calculate the configuration of mirrors and what they'll reflect.
I've got a gas meter installed facing the wrong way to read it and it requires the meter reader to bring a extendable mirror to check it but half the time they cbf and over quote the bill which leads to a fucktonne of issues to fix it.
I'm thinking of placing mirror panels placed strategically with a togglable LED or something to check it easily, would this configuration of mirrors be readable, or backwards still?
Open for any other ideas, but i'm not... Comment too long. Click here to view the full text.
>>913353 See if you can find apprentice/starter kits which have everything bar the welder and wire/electrode/filler, they tend to be a better deal. Also I support starting off with MMA, a decent inverter machine that also includes lift arc support can be had for a good price.
>>913353 only having .030 gasless wire will basically prevent you from doing auto body rust repair and exhaust welding, it just stabs through and makes a lumpy birdshit mess. i'd suggest adding some .023 er70s6 and a non-rental bottle of co2.
also you might want an angle grinder, roughing discs, slitting discs, flap discs, wire wheels, hearing protection, dust mask, safety glasses.
i'd also suggest a fire extinguisher. you don't want your last words to be SHIT SHIT SHIT SHI-
I want to make an arcade stick without using any pre bought parts, this includes the joystick itself.
i have been toying around with this idea for the better part of 2 years, and i think its possible,
using cherry black switches as the buttons, and as the directions, i think i could get a decent setup for it and if i wanted to go a bit more advanced, a spring, wood, and stick could probably make a decent joystick, though it would look weird as fuck.
my issue is not knowing a damn thing about the Teensy and if it will... Comment too long. Click here to view the full text.
I found this rail and took it planning to skateboard on it. I'm not sure if you can see, but the supports on the bottom of the rail go to one side. It lies down perfectly, but since the weight is one one side, it tips when I try to skateboard on it. What can I do to keep it still? I don't want to keep it one place as I plan on moving it, so I can't lock it into the ground. I have some ply wood, some 2 x 4s, an electric drill with some drillbits, and (really shitty) hacksaw. Keep in mind that the hole on the bottom of the... Comment too long. Click here to view the full text.
I spent yesterday assembling my parallel-vertical ebb and flow rig.
Here's what I learned:
-The fill/drain port should be as close to the bottom as possible, so that a slight inclination will allow the tube to drain completely while making it possible for the water level on the high side to get... well, almost a high as right next to the fill port. -If your setup involves multiple horizontal tubes and a single vertical fill line, then you need valves on each of them (except the topmost) to restrict flow, or else the bottom tubes will overflow. -The overflow... Comment too long. Click here to view the full text.
All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.
This is a 4chan archive - all of the content originated from them. If you need IP information for a Poster - you need to contact them. This website shows only archived content.
If a post contains personal/copyrighted/illegal content you can contact me at email@example.com with that post and thread number and it will be removed as soon as possible.