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An electronic candle that switches off when you blow on it. No moving parts, no microcontroller; just old-style analog circuitry.
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Blow and Behold! An analog candle

andrea-consoleAndrea Console

Lilka: DIY ESP32-S3 Learning Console with NES Emulation & Lua Support
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Lilka

bsverdlyukb.sverdlyuk

Great cells, not so great circuitry...
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Elecaenta 25W: Solar Panel Upgrade

toster92t.oster92

Building a Pen Plotter with automatic toolchanger with components from an old RepRap style 3D Printer. Runs on Klipper.
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Limn: Pen Plotter with Toolchanger

prashant-sinhaPrashant Sinha

A studio ghibli inspired simple add on - offering you candy
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Soot Sprite Simple Add-On SAO

davedarkodavedarko

Automated Pressure Advanced Calibration for FDM 3D printer
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Auto PA for 3D printer

markmark

My watch runs off "disposable" lithium cells. I retrofit it to run like a grandfather clock: weights and gravity.
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Gravity-Powered Digital Clock

ethanEthan

Created in 1972, the Model 832 was designed as part of a training program to teach both digital electronics and computer operations.
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NRI Model 832 Digital Computer Reproduction

michael-gardiMichael Gardi

Air-gapped Double Ratchet protocol on a commercial Arduino kit.
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Arduino End-to-End Encryption

aritz-erkiagaAritz Erkiaga

A sealed field radio with CRT terminal interface, physical controls and Spotify streaming. Built as a fully self-contained hardware device.
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A-63 Field Radio

markus-httnerMarkus Hüttner

In 1995, the UK game show, The Krypton Factor, tried to reinvent itself. They needed a laser matrix game, and I was involved.
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Prime time game show, lasers and an Amiga

tony-goacherTony Goacher

A technical and historical analysis of the LM10 opamp and voltage reference featuring new high-resolution die images.
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LM10 die shot matches historical mask photograph

aranwelttAranweLTT

Project designed and 3D printed to simulate and pay homage to those used in the SW saga
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STAR WARS HOLOGRAM

srrubioSrRubio

I wanted to buzz around 2024 EMF camp in something different. So I designed and built an electrically powered, tracked tricycle.
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Electric Tracked Tricycle for EMF camp

tony-goacherTony Goacher

Bring the Excalibur 64 back to life
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Excalibur 64 The Recreation

daveDave

This ECC83 (12AX7) preamplifier project successfully delivers the warm, pleasant, and dynamic sound characteristic of vacuum tubes.
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Building a Stereo ECC83 (12AX7) Tube Preamplifier

mircemkmircemk

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