Welcome to the personal website of Richard Clifford-Smith

A place for all the random stuff I've accumulated

About Me


I am an electronics engineer with a background in physics. Over the years I have undertaken many personal projects ranging from repairing electronic circuits to designing and constructing a trike.


Download a copy of my CV

Contact Me

Find out how to contact me

My Projects

Details of completed and in progress projects

Project Statistics

Projects In Progress

Projects Completed

In Progress Projects

Details of projects that are currently in progress.

Ignition Booster

Some electronics to boost a weak magneto ignition for testing

Dumper Truck

Repairing and improving a 1980s dumper truck

Dynamo Regulator

Constructing an electronic regulator for a dynamo (actually a dynastart) based on a published design

OpenSCAD Libraries

Some libraries I find useful

Completed Projects

Details of projects that have been completed.

Metcal Soldering Iron Power Supply

A power supply for Metcal soldering irons

RF Dummy Load

A 150W RF dummy load

Mains Frequency Meter

A Mains frequency meter inspired by the Time for Tea artwork

High Voltage Bench Supply

0-500 V, 0-100 mA, and a 0-100V negative bias supply and heater outputs for valve projects

The Trike

(aka the the strange 3-wheeled contraption)

The Jet Engine

Efforts to make a working jet from an old turbocharger

Exercise Bike Generator

A 12V Pedal-Powered Generator with variable loads for use as an Exercise Bike

Frequency Counter

A pretty conventional logic based counter with 10 MHz reference and switchable prescaler

Solar Diverter

A four channel Solar Diverter

Tiny Tim

A small petrol generator designed for battery charging

Firehose Fitting

An openSCAD implimentation of a standard fitting to BS336.

Second Trike (archived)

Now-shelved plans for follow-on project to the trike

Plasma cutter (archived)

Now-shelved project to build a plasma cutter from scrap. Superseeded by the wide availability of modern low-cost machines

QRP 40m PA

A simple 40m 5W PA, built mainly for use with WSPR

Undervoltage circuit

A micropower (sub-microamp) undervoltage lockout circuit

LED Lamp

A very simple 3D printed LED lamp which fits Dewalt power tool batteries


Feel free to send me any comments, queries or suggestions about anything on this site or about the site itself and at some point I'll get back to you.

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