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38 items tagged "tube"
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11:15
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Hack a Day
[McCaulsey] found an old TV waiting for garbage pick-up on the side of the curb. He brought it home and gave it a new life as an aquarium. His technique is a little rough, but the finished look is exactly what he was going for. He picked up the cheapest aquarium set he could find [...]
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12:13
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Hack a Day
Most audio tube amps we see use common tubes – usually a 12AX7 for the preamp and one of the more common power tubes such as an EL34.[Daniel], on the other hand, decided to build his own audio tube amp with a 13EM7, a tube originally used for a television’s vertical oscillator. The resulting project [...]
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4:00
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Hack a Day
While you won’t catch us in an argument with an audiophile regarding the sound quality of tube vs. solid state amps, there is a general consensus that tube amplifiers sound much better than their transistorized brethren. Actually building an all-tube amplifier, though, is a bit harder than one built around common ICs – there are transformers to deal [...]
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5:00
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Hack a Day
Because Nixies, Decatrons, and VFD tubes really are that cool, [cubeberg] over on the 43oh forums designed an IV-18 clock for the TI Launchpad. Like adafruit’s Ice Tube clock, [cubeberg]‘s project uses a surplus Russian IV-18 VFD tube conveniently sourced on eBay. On the board, there are three buttons for changing the time and setting the alarm along [...]
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10:10
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Hack a Day
The Nixie tube, a neon-filled tube with a series of 10 cathodes shaped like numerals, is a classic display for any build wanting a unique, vintage, or steampunk aesthetic. We shouldn’t be surprised a factory in China is now turning out Arduino-compatable Nixie modules (English translation, but don’t get your hopes up), but there it is. [...]
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8:10
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Hack a Day
For the Milan design week held last April, [Patrick Stevenson Keating] made a cathode ray tube and exhibited it in a department store. The glass envelope of [Keating]‘s tube is a very thick hand-blown piece of glass. After coating the inside of the tube with a phosphorescent lining, [Keating] installed an electrode in a rubber plug and [...]
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8:01
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Hack a Day
The Ranque-Hilsch vortex tube is an interesting piece of equipment. It can, without any moving parts or chemicals, separate hot and cold compressed gasses that are passed through it. Interestingly enough, you can cobble one together with very few parts for fairly cheap. [Otto Belden] tossed one together in a weekend back in 2009 just [...]
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7:01
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Hack a Day
We know that most of you will have no reason to ever make a miniature X-ray tube. However, we also know that many of you will find this video mesmerizing like we did. [Glasslinger] does a fantastic job of explaining the entire process of creating the mini x-ray tube from, procuring the uranium glass and [...]
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5:01
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Hack a Day
With the death of Heathkit looming in our minds it’s high time for a a heartwarming story. [Ronald Dekker] has done a wonderful job documenting the history of the E1T beam counting tube, detailing everything from the work led up to the invention of the tube to the lives of the inventors themselves. For those who [...]
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8:01
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Hack a Day
Nixies and VFDs are great displays, but when using them you’ve got to deal with some fairly high voltages, at least for the micro projects we see on Hack a Day. Luckily, there’s another ancient technology that can be driven at tiny voltages. [Kenneth] put up a great tutorial on Numitron tubes to show the Internet [...]
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5:01
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Hack a Day
If you’ve ever torn into very old equipment for a little refurbishment, you’ve seen ancient capacitors among tube sockets and carbon resistors. These caps are long past their life expectancy and are dried out. Putting a brand-new metal can cap in a piece of equipment from the 40s just seems wrong, though. Luckily, [unixslave] posted [...]
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6:01
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Hack a Day
Here’s a fiery project which [Patrick] calls his Pyro Jam Can. It’s the simplest Rubens’ Tube build that we can think of. For the uninformed, a Rubens’ tube uses flammable gas to reveal wave forms passing through the supply vessel. In the past we’ve seen projects with multiple columns, which very clearly show a standing [...]
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14:01
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Hack a Day
When you really want your feelings known, we always say that bigger is better. [Gavin Smith, aka The Mechatronics Guy] must come from the same school of thought, because there’s absolutely no mistaking what he is trying to say with his latest project. Inspired by this WiFi signal painter we featured a while back, the [...]
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9:01
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Hack a Day
[Mure] wrote in to let us know he has put the finishing touches on the second iteration of his Warm Tube Nixie clock. We featured his original creation here last year, and while many things remain the same, he has still found a few things that he was able to improve on. The first notable [...]
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12:30
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Hack a Day
A few years back, [Gio] decided to try his hand at building a couple of tube amplifiers. The first amp was more of an experiment to see how well a DIY single-ended tube amp would sound. The amp is based off the 6T9 design created by Spare Time Gizmos, and incorporates a pair of 6T9 [...]
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5:10
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Hack a Day
After seeing a picture of a thermometer using a bargraph style nixie tube in place of a mercury column, [Juergen Grau] decided he wanted to build his own. Dubbed the “Nixietherm”, his replica looks even better than the original. He used an IN-9 Nixie tube mounted on top of a custom plastic case, all powered [...]
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11:30
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Hack a Day
The Warm Tube Clock is the new kid on the block of Nixie Tube clocks. It takes inspiration from, and uses the same voltage driver circuit as the Ice Tube Clock. But this one uses four tubes instead of that hard-to-find single tube. It has a few other tricks up its sleeve. The shield that [...]
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8:00
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Hack a Day
It’s been a while since we’ve looked in on the world of vacuum tube audio equipment. [Bruce] just finished documenting a tube preamp he built. He actually made a couple of these with slightly different cases but they use the same circuit design. We found his discussion of common errors made when tying into ground quite [...]
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12:31
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Hack a Day
[Aleksander Zawada] makes vacuum tubes in his home. One of the most challenging builds he has taken on is to produce a working Nixie tube. He describes the process in a PDF, covering his success and failure. It seems the hardest part is to get the tube filled with the proper gas, at the proper [...]
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8:27
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Hack a Day
Precision CRT manufacture Here’s a great video from Tektronix about building a precision cathode ray tube. The tube manufacture method was developed to use in oscilloscopes and we’d guess it dates back to the early 1960′s. [Thanks Bill] Snake on an LED matrix We would have done a full post o this beautifully built LED matrix but [...]
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14:29
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Hack a Day
While we could be content following our “kiddie d-day” as [Caleb Kraft] suggested. We know you can’t continue such an awesome Friday without trying to blow yourself up first. This Wiimote Rubens’ tube caught our eye. A PVC Aluminum irrigation pipe is drilled with holes and propane is pumped through. A speaker on one end [...]
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12:06
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Hack a Day
[Daqq's] latest creation is this little robot with a CRT mounted on the front. Obviously ‘why?’ is the wrong question here, but we know this is right up his alley considering his propensity for the less common like this plasma ball Nixie tube. The solidly-built bot uses two stepper motor controlled wheels and an omni-wheel [...]
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5:59
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Hack a Day
If you’re curious about tube amps but don’t have a firm enough knowledge base to dive right in you might want to try a kit. [Mark Houston] reviewed one such kit and we enjoyed reading about his experiences. It comes with everything you need save soldering tools, an enclosure, and the final connectors ([Mark] used [...]
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8:54
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Hack a Day
We like to check in from time to time on the scratch-built tube amp scene. [Rogers Gomez] recently posted his build of a headphone tube amp. This is somewhat related to his work from 2008, but this time around it’s simple enough to serve as an entry into amplifier construction for beginners. The PCB layout [...]
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7:17
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Hack a Day
[Brian] wrote in to show us a site he’s been working on for a while. He’s been building a tube clock database. We didn’t realize there was actually a big enough draw for such a site, but we have to admit that we spent more than a few minutes browsing through the different clocks. There [...]