Oscillators may use crystals as precise tuned circuits. If you have a vector network analyzer (VNA) — or even some basic test equipment — you can use it to learn …read more (https://hackaday.com/2024/12/06/vnas-and-crystals/)

Antenna Measurement in Theory and Practice
https://hackaday.com/2024/12/06/antenna-measurement-in-theory-and-practice/

If you want to analyze an antenna, you can use simulation software or you can build an antenna and make measurements. [All Electroncs Channel] does both and show you how …read more (https://hackaday.com/2024/12/06/antenna-measurement-in-theory-and-practice/)

3D Printed Caliper Extensions Make Hole Measurement Easier
https://hackaday.com/2024/12/06/3d-printed-extensions-make-hole-measurement-easier/

If there’s anything more frustrating than mounting holes that don’t line up with the thing you’re mounting, we don’t know what it could be. You measure as carefully as possible, …read more (https://hackaday.com/2024/12/06/3d-printed-extensions-make-hole-measurement-easier/)

FlatMac: Building the 1980’s Apple iPad Concept
https://hackaday.com/2024/12/07/flatmac-building-the-1980s-apple-ipad-concept/

The Apple FlatMac was one of those 1980s concepts by designer [Hartmut Esslingers] that remained just a concept with no more than some physical prototypes created. That is, until [Kevin …read more (https://hackaday.com/2024/12/07/flatmac-building-the-1980s-apple-ipad-concept/)

Printing in Multi-material? Use These Filament Combos
https://hackaday.com/2024/12/07/printing-in-multi-material-use-these-filament-combos/

If one has a multi-material printer there are more options than simply printing in different colors of the same filament. [Thomas Sanladerer] explores combinations of different filaments in a fantastic …read more (https://hackaday.com/2024/12/07/printing-in-multi-material-use-these-filament-combos/)

Tis the Season
https://hackaday.com/2024/12/07/tis-the-season/

’Tis the season for soldering! At least at my house. My son and I made some fairly LED-laden gifts for the immediate relatives last year, and he’s got the blinky …read more (https://hackaday.com/2024/12/07/tis-the-season/)

Liquid Metal Ion Thrusters Aren’t Easy
https://hackaday.com/2024/12/07/liquid-metal-ion-thrusters-arent-easy/

What do scanning electron microscopes and satellites have in common? On the face of things, not much, but after seeing [Zachary Tong]’s latest video on liquid metal ion thrusters, we …read more (https://hackaday.com/2024/12/07/liquid-metal-ion-thrusters-arent-easy/)

The £25,000 Tom Evans Pre-Amp Repair and a Copyright Strike
https://hackaday.com/2024/12/07/the-25000-tom-evans-pre-amp-repair-and-a-copyright-strike/