Hacked Gadgets Forum

October 11, 2012

Washing Machine Coffee Roaster

at 3:00 am. Filed under DIY Hacks



Washing machines last a long time but when yours ends up kicking the bucket you might want to make a huge coffee roaster out of it.

“The setup consists of the roaster itself, a propane gas stove, an electricity extension cord for the motor, and a big pan to rapidly cool the beans when they’re done (to prevent overroasting).”



October 9, 2012

Good use for Old Microwave Ovens

at 1:28 am. Filed under Crazy Hacks


Microwave ovens are often discarded because they are old and don’t match the look of your other kitchen appliances anymore. Have no fear, there is a good use for these ovens. You can use the MOT (Microwave Oven Transformer) found inside for some high voltage fun or simply make a pressure vessel bomb out of it.  on Youtube has been having fun with these for years. Have a look at the above and below videos for an example of some of the antics he is up to. Make sure you subscribe to his channel if you like teardowns and some crazy high voltage fun.



October 8, 2012

Service of a Crown K1 Amplifier

at 1:25 am. Filed under Cool Gadgets


shows us how he services a Crown K1 Amplifier. Goes to show that computer motherboards are not the only thing that are plagued by dry caps. The amplifier faults out as soon as it is powered up and you can tell that Maxxarcade has a ton of experience with this equipment since he immediately knows where the problem lies. I am quite surprised with his troubleshooting technique though. Instead of determining what the fault is on the board he suspects is causing the issue he dives right in and takes the entire unit apart almost to the last screw and changes all of the electrolytic caps. I can see how troubleshooting right to a particular board fault might be a bit of a challenge though due to the construction of the amp. After all of the caps were replaced and the entire unit brought back to almost new condition the only issue that remains is a pot and a dirty bridge switch that needs a bit more work. It goes to show that not all electronics are disposable, and it is nice to see the construction that is built to last and be serviced. 

October 7, 2012

Huge Human-Powered Rube Goldberg Machine featuring Jason Paul

at 12:43 am. Filed under Crazy Hacks


Jason Paul is known for his super human abilities but when you add a Rube Goldberg Machine on a huge scale things get very interesting! I guess danger of death makes everything more interesting and this is no exception. There is no shortage of don’t try this at home in this video. I am not sure if the entire thing was taken in a single take though since there are a number of sections that are physically in different areas of the stunt and could possibly be done in separate takes.  If it was done start to finish I would think that it took many attempts to get it right…

Thanks for sending in the tip Bob.

October 4, 2012

Convert your Mirrorless Camera into a Large Format Camera

at 11:21 am. Filed under DIY Hacks


Hank Dietz who is a professor of Electrical and Computer Engineering at the University of Kentucky has built this Adapter that allows your Mirrorless Camera to be used n a Large Format Camera. This gives you more features such as tilt and shift to allow you to take pictures that would not be possible in the small frame of the original camera.

“Well, first off, the unit described in this instructable costs more like $10 to build. No, the digital camera can’t slide for panoramas — but that’s ok, because most large format cameras allow the lens and/or the entire back to do that, giving exactly the same functionality! In fact, the lens can shift in both the horizontal and vertical directions, giving better functionality. However, the primary motivation is more subtle and more important: the mounts of necessity force a DSLR to be quite far behind the original film plane, making it impossible to reach infinity focus. The shorter flange distance on mirrorless cameras, combined with the lack of front-facing protrusions, allows them to come much closer to aligning with the intended film plane of the large format camera… so infinity focus is much more likely to be feasible and lens tilt and shift features are less likely to be impeded by mechanical obstructions.”


Vintage TV Sleep Timer Project

at 2:19 am. Filed under DIY Hacks, Electronic Hacks



Our friend Viktor has dusted off one of his old projects and shares the details with us. If you have been burning the candle at both ends you have no doubt fallen asleep on the couch with the TV on. When you wake up many hours later the first thing you do is turn off the TV which was working away with no one watching it.

This Vintage TV Sleep Timer Project allows for a sleep function to be enabled into your TV so that when you fall asleep the TV will turn off by itself. This project doesn’t have much value as a TV sleep timer these days since most TVs have this function built in but there are still many uses for this type of operation. It reminds me of the train speed control which is tied into a dead man switch, this allows the train to stop if a switch isn’t maintained in the depressed position. This could be caused by a train conductor falling asleep or dying.

It is interesting to see how the circuit works since there is no microcontroller in place.


October 2, 2012

Colin Karpfinger returns to his College to Motivate the Current Students

at 3:36 am. Filed under Educational


Colin Karpfinger who you might have seen in Wired recently (and on Hacked Gadgets before) wanted to inspire the current group of students at his old College, he told them how he started out in electronics and some of the stumbles along the way. He talks about his 555 timer project where he built a beeping countdown bomb simulation on a breadboard. Unfortunately the professor wasn’t very impressed. 🙂 He designed it into a product that he wanted to sell but component tolerances made the newly built circuit not work correctly. He was introduced to microcontrollers which is perfect for this type of task. He also talks about a project to improve mobile gaming that made it to the shelves of Best Buy.

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