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The MOnSter 6502 project recreates the classic MOS 6502 processor at transistor scale on a 12-by-15-inch circuit board with thousands of visible components. It turns an integrated circuit back into something you can point at.
Phil's Old Radios launched in 1995 and still documents antique radios and televisions through restoration articles, galleries, beginner guides, and practical repair information.
ZeptoBars photographs the silicon hidden inside integrated circuits, turning anonymous black packages into a long-running visual archive of chip design, manufacturing, and semiconductor history.
Captured Lightning is Bert Hickman’s long-running high-voltage site covering Tesla coils, Lichtenberg figures, giant electrical arcs and a machine that electromagnetically shrinks coins in millionths of a second.
Mike's Digital Clocks documents decades of homemade electronic clocks built from Nixie tubes, electroluminescent strips, giant LEDs, PIC processors, acrylic cases, and whatever else looked like it could display a number.
Vintage-Technics.ru is a sprawling photographic catalog of vintage audio, recording, dictation, television, radio, surveillance, and portable electronics, including obscure Soviet, European, Japanese, and American equipment.
The Homebrew Computers Website links dozens of machines whose CPUs were built by their owners from relays, TTL logic, FPGA designs, vacuum-tube ideas, and other hardware instead of bought as complete processor chips.
Industrial Alchemy's online Technology Museum catalogs vacuum tubes, Nixies, CRTs, semiconductors, calculators, pocket computers, military electronics, strange displays, and other components that usually disappear into drawers instead of museums.
The Valve Museum is a massive online reference for vacuum tubes, with thousands of exhibits, a type finder, technical data, equivalents, advertisements, packaging, historical timelines, recollections, amplifier articles, and manufacturer information.
W8JI.com is a dense amateur-radio engineering archive covering antennas, amplifiers, baluns, tubes, transmission lines, common-mode current, receiver problems, RF measurements, grounding, noise, and the myths that grow around all of them.
Julien Nadeau Carriere's Vedge.org combines BSD and open-source software with machining charts, vacuum-tube work, metal casting, shop projects, astrophotography, vintage computers, and personal links.
Game Zero's Math Behind the Magic processor-design tutorial walks through half adders, incrementers, registers, buffers, RAM, ROM, buses, and an accumulator while assembling a tiny 4-bit CPU.
DOS4Ever documents Ronald Dekker's Nixie clocks, tube testers, PIC projects, retro processors, restoration work, and electronics-history investigations in the dense project-page style that made the old technical web so useful.
Glitch Works documents repairs, restorations, homebrew boards, obscure single-board computers, old UNIX hardware, CP/M systems, and the practical work required to make vintage machines function again.
Tetsuo Kogawa's transmitter workshop archive combines FM and TV transmitter schematics, tools, antenna notes, pictorial build instructions, FAQs, video, and a history of hands-on micro-radio workshops dating to 1990.
K3PGP's Experimenter's Corner is a sprawling ham-radio and electronics workshop covering weak-signal radio, lasers, moonbounce, astronomy, homebrew hardware, software, and experiments that range from VLF to visible light.
Bill Beaty's Science Hobbyist site has been online since 1994, mixing electronics, physics demonstrations, high-voltage experiments, misconceptions, unconventional research, and an old resource page built for nerds and misfits.
Roger Russell's personal site preserves a sprawling history of McIntosh Laboratory products, people, loudspeakers, clinics, patents, prices, and engineering details from someone who helped design part of that history.
Mike's Electric Stuff preserves photographs, operating details, manuals, and firsthand notes about mercury arc rectifiers: giant glowing electrical valves that converted AC to DC before solid-state electronics replaced them.
Steve Yates's AA5TB site has been online since 1998, collecting practical amateur-radio notes on antennas, feed lines, QRP work, homebrew baluns, small transmitting loops, and other material built from decades of hands-on radio experience.