They began publishing Popular Electronics magazine in 1954, and it soon became one of the best-selling DIY electronics magazines. And now you can relive those bygone days of yore by browsing through this archive of PDFs of all back issues from 1954 to 1982.
Reading back through the magazine’s history gives you a good feel for the technological state of the art, at least as far as the DIYer is concerned. In the 1950s and 1960s (and onwards) radio is a big deal. By the 1970s, hi-fi equipment is hot and you get an inkling for the dawn of the digital computer age. Indeed, the archive ends in 1982 when the magazine changed its name to Computers and Electronics magazine.
It’s fun to see how much has changed, but there’s a bunch of useful material in there as well. In particular, each issue has a couple ultra-low-parts-count circuit designs that could certainly find a place in a modern project. For example, a “Touch-Controlled Solid State Switch” in July 1982 (PDF), using a hex inverter chip (CD4049) and a small handful of passive components.
But it’s the historical content that we find most interesting. For instance there is a nice article on the state of the art in computer memory (“The Electronic Mind — How it Remembers”) in August 1956 (PDF).
Have a good time digging through the archives, and if you find something you really like, let us know in the comments.
Here’s a 30 round magazine for an AR15, made just in time to add to the national conversation over things that look scary.
This magazine is the product of Defense Distributed who have previously graced the front page of Hackaday with their 3D printed scary bang bang machine. While continuing to work on their WikiWeapon – a gun printable on a home-built 3D printer – the team decided they could subvert more obtuse gun laws by making their own high-capacity magazine.
The magazine is printed on an extremely expensive commercial 3D printer, but the team is working to make it printable on more affordable models. The prototype magazine survived unloading a full 30 rounds. Video demo of that after the break.
Also on Defense Distributed’s DEFCAD is a sound moderator for paintball and air guns. While the design isn’t yet finalized for those big scary assault weapons, it should be possible to modify it for the big guns. One of their next projects is a stock, hopefully one that includes a hinge.
Continue reading “Print your own 30 round AR15 magazine”
Hackaday readers were stumbling over each other to send in a link about this Android cellphone inside of an Entertainment Weekly magazine. Thanks to all who sent it in, and keep them coming. We’d rather get too many tips than none at all!
The first thing we should address is the discomfort you will feel while watching the video after the break. If you’ve got any experience tearing open electronics to see what’s inside you will be physically uncomfortable watching this pair bumble through it. It makes us want to do some MST3K-style overdubbing of the video, but their content ownership claim in the description makes us sure we’d get an immediate take-down notice if we did so.
At any rate, what we have here is some really cool tech you almost certainly will not be able to get your hands on. In the image above you can see the small LCD screen to the right. It comes to life when the page is opened thanks to the sliding switch being pointed to in the image. A few television show promos will play before the device starts scrolling items from the CW Twitter feed. When the hardware is pulled out of the pages there’s some interesting tinkering to be done. Shorting the contacts on the keyboard overlay (about 8 minutes into the video) brings up an Asian-language menu which is pretty obviously Android.
This is not the first time the magazine has done something like this. CBS embedded video a few years back but we’re pretty sure that one didn’t use the full guts of a cellphone. It’s just too bad these issues are so rare (only 1000 are available in two cities) as we had a lot of fun hacking that Esquire issue with the epaper in it.
Continue reading “There’s a friggin’ cellphone in the most recent Entertainment Weekly”
137 years of the magazine Popular Science are now being hosted online by Google. You can peruse at your leisure, though you’ll have to search by keyword. We don’t see a date or issue browsing option. The cover art alone is worth your time, even if you’re not a fan of the articles. Many of us have fond memories of our childhood being influenced by the contents of these pages.
TechEBlog has posted a few pictures of a student constructed coil gun. It’s bolt-action and includes a six round magazine. The gun only has a single stage to accelerate the projectile. While not as impressive as the portable coil pistol, it’s still more fun than most shop projects we’ve seen. You can find a video of the device below.
Continue reading “Bolt-action coil gun”
Until midnight tonight, you can download a free copy of the 1/2008 issue of security magazine hackin9. It’s 84pages, 10.5MB, and requires you to provide an email address they don’t verify.