Ring Around the Inverter
[Dr. Shane] asks the question: what happens if you connect the output of an inverter logic gate back to the input? In theory, it doesn’t make sense, but depending on …read more Continue reading Ring Around the Inverter
Collaborate Disseminate
[Dr. Shane] asks the question: what happens if you connect the output of an inverter logic gate back to the input? In theory, it doesn’t make sense, but depending on …read more Continue reading Ring Around the Inverter
About two decades ago there was a quiet revolution in electronics which went unnoticed by many, but which overturned a hundred years of accepted practice. You’d have noticed it if …read more Continue reading Parts We Miss: The Mains Transformer
Flexible cables and flex PCBs are wonderful. You could choose to carefully make a cable bundle out of ten wires and try to squish them to have a thin footprint …read more Continue reading Friendly Flexible Circuits: The Cables
There are plenty of electronic components which were once ubiquitous but once the niche which led to their existence has passed, they fade away to remain a junkbox curio. The …read more Continue reading Why Not Try A DIAC?
When you just can’t 3D print something as a monolithic part, you’re going to have to join pieces together. In such cases, most of us instinctively include threaded inserts or …read more Continue reading Tricky 3D Printed Joinery Problem? Give Heat Staking a Try
Anyone who’s worked with older tube-based equipment will be familiar with the type of vintage electrolytic capacitor which integrated several capacitors into one can. Long obsolete, they can be bought …read more Continue reading Multi-way Capacitor Replacement Without the Pain
Ever wondered why your Arduino wasn’t programming, only to find out that the cable doesn’t have any data conductors? Worry not, [Spencer Maroukis] has got you covered with the USB …read more Continue reading Eliminate That Pesky Power-Only USB Cable With This Cable Tester
Alright, here’s your quick and dirty hack for the day. The astute among you may recall [Peter Waldraff]’s bookshelf train build of a few days ago, and the fact that …read more Continue reading Ballpoint Switch Is Oh-So Satisfying
[Janis Alnis] wanted to build an analog computer circuit and bought some multiplier chips. The first attempt used apparently fake chips that were prone to overheating. He was able to …read more Continue reading Lorenz Attractor Analog Computer with Octave Simulation
[IMSAI Guy] got some fake LM358 op-amps. Uncharacteristically, these chips actually performed well even though they didn’t act like LM358s. [IMSAI Guy] did a video about the fake chips and …read more Continue reading Inside a Fake LM358