Collaborate Disseminate
One can 3D print with conductive filament, and therefore plausibly create passive components like resistors. But what about active components, which typically require semiconductors? Researchers at MIT demonstrate working concepts …read more Continue reading MIT Demonstrates Fully 3D Printed, Active Electronic Components
Picture this: It’s the end of the year, and a few hardy souls gather in a hackerspace to enjoy a bit of seasonal food and hang out. Conversation turns to …read more Continue reading New Years Circuit Challenge: Make This RFID Circuit
Many Hackaday readers have an interest in retro technology, but we are not the only group who scour the flea markets. Alongside us are the collectors, whose interest is as …read more Continue reading When Transistor Count Mattered
Beyond the power variant, it sometimes seems as though we rarely encounter a discrete transistor these days, such has been the advance of integrated electronics. But they have a rich …read more Continue reading Make Your Own Point Contact Transistor
Often, the only liquid level indicator you need is your eyes, such as when looking at your cold beverage on a summer’s day. Other times, though, it’s useful to have …read more Continue reading A Simple Liquid Level Indicator With a Single IC
In the early days, PNP bipolar transistors were common, but the bulk of circuits you see today use NPN transistors. As [Aaron Danner] points out, many people think PNP transistors …read more Continue reading All About PNP Transistors
Building a retro computer of some sort is a rite of passage for many of us, with some building replicas or restorations of old Commodores, Ataris, and other machines from …read more Continue reading Homebrew Computer from the Ground Up
Not every computer can make use of a disk drive when it needs to store persistent data. Embedded systems especially have pushed the development of a series of erasable programmable …read more Continue reading Reprogrammable Transistors
Researchers have used off-the-shelf components to create a sensor device that is not only cost-effective but can quickly detect 32 different pathogens and has sensitivities on par with the state-of-the-art biosensors used in pathology labs. The novel d… Continue reading Medical lab-on-a-chip runs 32 pathology tests at once
Researchers at UCLA recently developed what they are calling a thermal transistor: a solid-state device able to control the flow of heat with an electric field. This opens the door …read more Continue reading A Transistor, But For Heat Instead of Electrons