14th December 2014
An electrostatic discharge wand with neon indicator lamp.
Parent article: Advent Calendar of Circuits 2014.
13th December 2014
A simple field mill made from PCB material and a small electric motor.
Parent article: Advent Calendar of Circuits 2014.
26th December 2010
Experiments in wireless power transfer for a practical application, lead to some interesting side-bar observations on plasma physics, and the cutest little Tesla coil you've ever seen.
Contains 1 sub-article.
18th December 2010
Electroluminescent trimmed backpack inspired by TRON.
7th June 2009
New pancake Geiger Müller tubes and a fairly small power supply for them.
24th May 2009
Abuse of an old 2X2 vacuum tube with a HT power supply to create a soft x-ray source.
28th December 2008
I try my hand at designing a switchmode power converter for a B+ supply using an Atmel ATtiny13 for the controller.
10th May 2003
Fred Kennedy noticed the circuit diagram might be wrong.
Parent article: High Voltage Probes.
20th March 2003
Richard Solis asked me to post the circuit diagram.
Parent article: High Voltage Probes.
9th February 2003
Built to show ceramic caps are generally OK for Marx service.
Parent article: Marx Generator.
28th January 2003
Characterizing the testing supply, and some more thoughts towards building "the big one" some day.
Parent article: Marx Generator.
27th January 2003
More new capacitors lead to a multi-Joule device.
Parent article: Marx Generator.
14th January 2003
An attempt at a choke charging Marx generator.
Parent article: Marx Generator.
5th January 2003
Two new prototypes for the New Year.
Parent article: Marx Generator.
14th December 2002
Some eBay wins pay off and my first serious Marx Generator is born.
Parent article: Marx Generator.
8th December 2002
The Proof-of-Concept unit gets an extension.
Parent article: Marx Generator.
16th November 2002
An ultra-simple, very sensitive electrometer.
10th November 2002
My small implementation of Bill Beaty's soda bottle electrostatic motor.
10th November 2002
I've been working with high voltage quite a lot lately, so I decided to make myself some basic test equipment. Starting with a 1000:1 DC probe.
Contains 2 sub-articles.
3rd November 2002
Marx generator evolution, through many prototypes.
Contains 8 sub-articles.
3rd November 2002
The first Marx Generator I built.
Parent article: Marx Generator.
27th October 2002
My small, and quite ugly, prototype built using house hold materials.
26th October 2002
Various fooling around with a old TV flyback transformer.