Электровакуумная химия в домашней мастерской. Травление ковара, никеля, молибдена, вольфрама

Громадное значение в электровакуумном деле имеет тщательная очистка внутриламповых материалов — в условиях высоких температур и глубокого вакуума, способных выделять впитанные ранее вредные вещества и газы. Весьма радикальным способом такой подготовки является травление — удаление верхнего, самого загрязнённого слоя материала. Процесс очень эффективен, но изменяет (уменьшает) размеры деталей, утончает заготовки, требует агрессивных составов. Читать дальше →

Support Our Work at Great Scott Gadgets

Like every open source company, Great Scott Gadgets thrives with support from you, our community. The most direct way to support us is to buy our hardware, but for folks who already have our hardware, are more interested in our software, or just want to see us grow, we have a few other options. For example, we appreciate contributions to our GitHub repositories, documentation edits, and hearing your use cases and feedback for our products and projects. If you want to know other ways you can get involved, check out our “Support our Work” page.

Free Stuff - April 2024

The belated April 2024 Free Stuff recipient for the Great Scott Gadgets Free Stuff Program is Necati Sari! Necati is a radio amateur who is looking to build a single board computer (SBC) with HackRF One. Necati is developing this SBC to help support his local amateur radio community, TRAC Kadikoy in Turkey, in bringing in new members and to make software-defined radio more accessible to folks that are just starting in this discipline.

This application for the Free Stuff program stood out to the team here at Great Scott Gadgets because it focuses on community support and it proposes a...

Sniffing PS5 Controller Packets with Cynthion

https://www.youtube-nocookie.com/embed/DHjmOFIk2nk

In our latest training video Martin uses Cynthion to sniff PS5 controller packets. The video guides you through how to set up Cynthion, how to use Packetry, and what PS5 controller packets look like. If you are just getting started with Cynthion or learning about USB, we suggest checking out this video.

Free Stuff - March 2024

The belated March 2024 Free Stuff recipient for the Great Scott Gadgets Free Stuff Program is Benjamin Pieres! Benjamin is a newly licensed amateur radio operator who is excited to contribute to the amateur radio community and share his passion for radio communication through workshops and innovative experiments.

One of the workshops Benjamin envisions hosting is focused on introducing basic radio communication principles to beginners. Participants will learn about radio wave propagation, antenna design, and the fundamentals of operating amateur radio equipment. Additionally, Benjamin plans to organize workshops on emergency communication preparedness, where attendees will learn how to establish communication networks...

A surprising IC in a LED light chain.

LED-based festive decorations are a fascinating subject for exploration of ingenuity in low-cost electronics. New products appear every year and often very surprising technology approaches are used to achieve some differentiation while adding minimal cost.

This year, there wasn’t any fancy new controller, but I was surprised how much the cost of simple light strings was reduced. The LED string above includes a small box with batteries and came in a set of ten for less than $2 shipped, so <$0.20 each. While I may have benefitted from promotional pricing, it is also clear that quite some work went into making...

Пасхалка в Eagle

Eagle (если вдруг кто не знает), это CAD для проектирования печатных плат, разработанный компанией CadSoft Computer GmbH, и впоследствии перекупленный и убитый компанией Autodesk.

Исследуя внутренности исполняемого файла Eagle под MacOSX, обнаружил, что даннае программа должна содержать в себе "пасхалку", запускаемую из редактора печатных плат. Какой-то информации на эту тему не удалось обнаружить в интернетах. Однако, всё оказалось очень просто - достаточно ввести команду "snake" в командной строке (что находится в верхней части окна), причём, делать это надо именно в редакторе плат, и вуаля.

Видим игровое поле, постоенное из контуров печатной платы. После...

Top 5 Linux server distributions you should use in 2024

Linux is always a preferred operating system for people who want their server to be robust, stable, secure and private in nature. It is also customizable, which allows the developers to create an environment according to their needs. Also, while the Desktop market-share of Linux is only 5%, on servers the market share of Linux […]

Antenna diodes in the Pentium processor

I was studying the silicon die of the Pentium processor and noticed some puzzling structures where signal lines were connected to the silicon substrate for no apparent reason. Two examples are in the photo below, where the metal wiring (orange) connects to small square regions of doped silicon (gray), isolated from the rest of the circuitry. I did some investigation and learned that these structures are "antenna diodes," special diodes that protect the circuitry from damage during manufacturing. In this blog post, I discuss the construction of the Pentium and explain how these antenna diodes work.

Sonata™ v1.0 release

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