Hacksnmod

[NeXT] needed an EPROM programmer to work with chips from vintage computers. Starting with a low cost programmer, he built this custom IC pr...

Back in the olden days  when computers were both analog and digital, making RAM was actually very hard. Without transistors, the only purel...

With a love of blinky and glowey things, [Fran] has collected a lot of electronic display devices over the years. Now she’s doing a few te...

[Ryan] wanted a spectrum analyzer for his audio equipment. Rather than grab a micro, he did it the analog way . [Ryan] designed  a 10 band a...

Deep in the bowels of the Internet there are some crazy people who have a wish list for what the next Apple II should look like. The capab...

[Fran] has been working on tearing down and reverse engineering the Saturn V Launch Vehicle Digital Computer (LVDC). In her finale, she’s ...

The current marketplace allows hobbyists to easily find inexpensive, well-documented displays, but what if you wanted to interface with so...

Can you spot the serial port in the pic above? You can probably see the potential pads, but how do you figure out which ones to connect to?...

[Quinn Dunki]‘s awesome 6502-based computer is coming right along, and she decided it’s time to add one of the most important features foun...

[Jack] sent in his writeup for internet enabling a home lamp . While we will certainly have some comments saying this is too simple, it do...

Sometimes the stars align and we get two somewhat similar builds hitting the Hackaday tip line at the same time. Recently, the build of no...

[Andrew] recently scored an awesome HP 1670A Deep Memory Logic Analyzer, lucky dog. Even though this machine was built in 1992, it was a t...

[fahadshihab], a young tinkerer, shared his circuit design for a simple remote control using 555 timers .  Using a  555 calculator , he des...

Vintage electronics are awesome, and old medical devices doubly so. When [Murtaugh] got his hands on an old ultrasound machine, he knew he h...

Devices that collect coins for payment typically use standardized coin acceptors like the one shown here. These devices use a protocol cal...

Throughout the 1960s, the management at RCA thought LCD displays were too difficult to commercialize and sent their engineers and research...

Released in 1993, the Atari Jaguar suffered from a number of problems – it was difficult to program, had hardware idiosyncrasies, and with ...

Many of us tried the old “Two tin cans connected by a string” experiment as kids. [Michael Rainey, AA1TJ] never quite forgot it.  Back in ...

A few decades ago, Japanese manufacturers of arcade games realized they should make a connector for all their boards that provides the pow...

Maybe we shouldn’t say “built” since [Steve Chamberlin] hasn’t actually heated up his iron yet. From the finished schematic above that is p...