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Electronics

Laboratory instruments • Controllers • Measurement systems

Electronics Projects

A collection of practical electronic instruments, laboratory equipment, measurement systems and controllers designed or assembled in my workshop.

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New projects and experiments added through the website administration.

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Laboratory Power Supply

Laboratory Power Supply

Adjustable 0–30 V / 0–4 A bench supply

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LM4780 Hi-Fi Amplifier

LM4780 Hi-Fi Amplifier

Stereo power amplifier with preamplifier and level indication

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LCD Dosimeter

LCD Dosimeter

Alpha, beta and gamma detector with digital and analogue indication

Open project
Photographic PCB Production

Photographic PCB Production

Home production of precise printed circuit boards

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NAMUR and Limit-Switch Tester

NAMUR and Limit-Switch Tester

Portable tester for mechanical and NAMUR proximity switches

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Aquarium Controller

Aquarium Controller

Programmable lighting, temperature and accessory controller

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Model Railway Controller

Model Railway Controller

PWM train and lighting controller for a TT layout

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Visible-Light Spectrometer

Visible-Light Spectrometer

Webcam-based spectrometer for UV, visible and near-IR experiments

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Improved VIS Spectrometer

Improved VIS Spectrometer

Second-generation STARVIS spectrometer and calibration sources

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Earlier projects, archived constructions and older versions of articles.

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About this section

These pages document personal projects developed over several years. They include circuit concepts, construction photographs, measurement results and practical observations. Some designs operate with mains voltage, high voltage or ionising radiation; appropriate technical knowledge and safety procedures are essential.