Mike's Electric Stuff


Each of the three main sections has a 'tour' facility for easier navigation through the pages - clicking on the small icons at the corners of each page will move to the next or previous page in that section.

Upcoming public demos, events etc. I'll be participating in
None at present.
I can often be found lurking or presenting at Dorkbotlondon meetings.

Check my Youtube channel - new stuff is most likely to appear here at the moment so subscribe!

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Antique Glass stuff

small3nf.jpg (1275 bytes)Loewe multi- valve The first ever integrated circuit, from 1926! smallbig.jpg (1250 bytes)The BIG stuff Serious glass. smcv.jpg (1013 bytes)High-frequency valves plus klystrons & magnetrons.

smtrig.jpg (1017 bytes)Spark gap and triggered gap tubes and small thyratrons.

smmini.jpg (1083 bytes)Miniature valves
..and the cutest little CRT you'll ever see...!
smallr.jpg (1077 bytes)Vintage valves smallmerc.jpg (1433 bytes)Mercury Arc Rectifiers How you made DC before silicon. smarc.jpg (1048 bytes)Lamps etc. Antique / unusual bulbs & arc tubes..
smallneon.jpg (1451 bytes)Neon lamps and neon strobe tubes. smgeis.jpg (1129 bytes) Geissler tubes pretty discharge tubes from before the days of neon. smallglass.jpg (1038 bytes)Assorted glass components Weston cells, crystals, geiger tubes, vacuum guage.

smphoto.jpg (1089 bytes)Photoelectric Cells and photomultipliers.

anim.gif (26707 bytes)Nixie tubes, dekatrons & counting tubes Digital glass stuff. anim600.gif (7817 bytes)flashdot.gif (1480 bytes)anim100.gif (5533 bytes)anim10.gif (8624 bytes)Nixie Clock project   Full construction details including PCB artwork. plasticguy.jpg (43849 bytes)Advertisments for early electronic stuff incuding very early transistors & computing, from the early 1950s. wpeBC.jpg (343936 bytes)Interesting old frequency counter
Unusual display device
Old technical books online
Old technical books covering obsolete technology 
Industrial Valve specs and data sheets  Thyratrons, Ignitrons, cold-cathode tubes, power valves etc Very Clever Glassware including a glass analogue to digital converter and a 256 bit memory tube. Valve & Vintage electronic Links

Tesla coils and high-voltage stuff

Warning! Tesla coils and their ancillary equipment are VERY VERY dangerous and you should not even THINK about trying to make one unless you really understand the dangers of high-voltage electrical systems. And even then you probably shouldn't.

smallcoil.jpg (1138 bytes)Tesla coil pictures Trying not to burn down my garage. smallcd2.jpg (1317 bytes)Zapping CD's What to do with that Spice Girls CD you got for Xmas. smbulb.jpg (1206 bytes)Lightbulb plasma globe Storm in a bulb. smallpanel.jpg (1187 bytes)Laptop Hell  Remember those 'portable' PC's with plasma displays?
smallargon.jpg (1243 bytes)Fun with Argon  Inert gas getting slightly more ert. smpcb.jpg (1271 bytes)Zapping Electronic stuff Chip frying. smhouse.jpg (1164 bytes)High voltage demo at the Deutsches Museum, Munich. uktes.jpg (1687 bytes)UK Teslathon
Corby '98
First UK teslathon.
uktes.jpg (1687 bytes)UK Teslathon Corby '99  uktes.jpg (1687 bytes)UK Teslathon
Cambridge '99 With AVI's of coils and exploding stuff
uktes.jpg (1687 bytes)UK Teslathon Corby 2000

smsurge.jpg (1533 bytes)Fun with a surge generator Can-crushing, ballistic maglev and exploding stuff.

sjacob.jpg (1111 bytes)Jacob's Ladders High-voltage flames smwheel.jpg (947 bytes)Tesla Coil Motor Electric 'wheel of fire' effects. smplasma.jpg (1232 bytes)Fun with Plasma in a xenon flash tube 01514001.JPG (407904 bytes)"Quick & Dirty" Marx Generator Big sparks - fast!

wpe1E.jpg (99150 bytes)The Destruct-O-Tron Three Thousand Joules of danger!

wpe49.jpg (23716 bytes)The Jacobs-Ladder-O-Phone of fire!
A new twist on an old HV device

wpe37.jpg (12045 bytes)Marx Three
A million volts of fun

uktes.jpg (1687 bytes)UK Teslathon Derby 2004
wpe16.jpg (266319 bytes)Sparks of Fire
High voltage AND flames - cool!
uktes.jpg (1687 bytes)Amberley Teslathon  2004
wpe5A.jpg (18231 bytes)High-speed camera meets destruct-o-tron
Amazing footage!
wpe59.jpg (571502 bytes)Destruction in the name of charity


The Spark-O-Phone
Sound improvisation by electrons...
50KV Electron Microscope PSU Info on high-power pulse switching devices trigatrons, thyratrons and various other -trons. Tesla coil and high-voltage links

Miscellaneous electric, science & laser stuff

But I wanna see inside anyway!..but only if you find out!Inside Electric Stuff - Ever wondered what electronic gadgets look like inside but were scared to get your screwdriver out ?

smalljb.jpg (1654 bytes)CD Jukebox 1000 CD's at the press of a button. smhifi.gif (937 bytes)My Home AV system So complicated I had to draw myself a diagram! smakkneo.jpg (1099 bytes)Neodymium magnets Turn a hard disk into a maglev device.
smallmyst.jpg (1332 bytes)Mystery corner Odd components  - can you figure them out ?
smcd80.jpg (1775 bytes)Old calculator collection. smbbm.jpg (1826 bytes)Ball-bearing motor Odd non- magnetic motor. pcb.gif (4162 bytes)How to make really good homebrew PCBs

Not pretty, but it works!DIY PCMCIA Serial interface

00B03007.JPG (342736 bytes)Unusual digital clocks 01410001.JPG (295906 bytes)Argon laser power supply from surplus switchmode PSUs 01504004.JPG (269342 bytes)Miniature smoke machine for laser experimenters wpe13E.jpg (46686 bytes)Fun with an argon laser


wpe15B.jpg (68790 bytes)Fun with a BIG laser The lights go dim as the beam comes on.....
99926005.JPG (323072 bytes)The mystery of the collapsing Lucozade bottles A strange phenomenon investigated. wpe2E.jpg (23920 bytes)The Incredible Shrinking Chip
A nice demonstration of how much smaller chips have become over the last decade.
wpe3C.jpg (52502 bytes)A Laser that burns stuff!
Mike's got a CO2 laser - be afraid, be very afraid..!
wpe4C.jpg (125447 bytes)Backwards PC Case
An unusually useful case mod for plug-a-holics
wpe11.jpg (119665 bytes)Canon EOS 300D/Rebel/Kiss stuff
Modifying EF extension tube, Changing focus screen
wpe5.jpg (108527 bytes)Transparent electric stuff
wpe46.jpg (69545 bytes)A Handy method for storage of surface-mount components
wpe52.jpg (135662 bytes)Build a cheap capacitance box
wpe58.jpg (429289 bytes)Probe for in-circuit PIC programming.
wpe149.jpg (163094 bytes)High-Speed video camera system
1000 frames/second of fun
wpe7D.jpg (263982 bytes)Repairing a window with an aquarium pump.
wpe8A.jpg (266638 bytes)Inside a fake AC Adapter wpe9D.jpg (25278 bytes)A Curious Oscillator circuit
Probably not useful..
wpeAD.jpg (4043 bytes)High-speed video images
Images from my high-speed camera system.
New stuff 9 Apr 2006

wpeB0.jpg (107246 bytes)Violet laser diode fun

Fun with Ferrofluid
And magnets. And Water
wpeE1.jpg (502325 bytes)Ipod LCD hacking wpeF7.jpg (10009 bytes)Hacking the ultra-cheap Sparkfun Colour QVGA LCD wpeC.jpg (401956 bytes)SMT toaster hack
Reflow for 5
wpeA.jpg (318311 bytes)Cheap serial GPS receiver hack wpe4A.jpg (399541 bytes)Cheap laser cutter
Cut! Burn! Melt!
img_5034.jpg (583324 bytes)Wierd military Processor boards wpe7A.jpg (14393 bytes)Ipod Nano V6 LCD hacking
PIC, AVR & other microcontroller stuff
Assorted neat microcontroller tips, tricks etc.
Which is better, PIC or AVR ?
Let's have a heated debate....
Muppet Alert Dumb emails received
The Junk Box Oddments that don't really fit anywhere else... Nokia colour LCD driver identifier
Philips or Epson..?
Naughty Bits What electronic components get up to when you're not looking... Science & miscellaneous links

Cynical commercial exploitation department (Warning : may contain something that is actually useful, or something I get paid for...)

Electric Stuff for sale

Electric stuff for auction
wpeFD.jpg (8428 bytes)Thermitrack
Thermal imaging people tracker
wpeAA.jpg (100659 bytes)Universal prototyping board
Highly flexible board for DIP and SMD building.
Red-Eye in position on the front of the STBRed-Eye Infra-red protocol converter for Pace UK digital cable boxes
wpeF3.jpg (13085 bytes)Simple serial imager
low-cost, low-res, easy-to-use image sensor.
wpeF4.jpg (38628 bytes)DMX Cube
Anything-to-DMX converter
wpeA3.jpg (25069 bytes)Playing with London's famous bridges wpeF2.jpg (20854 bytes)Building a UFO
Yes, really - I actually get paid for doing this stuff!

Press / web articles etc. featuring this site :

EEWeb featured site of the day Jan 2012
EEweb interview Dec 2011
BBC feature on Dorkbotlondon, featuring sparkophone presentation, June 2009

Video of French TV coverage of Dorkcamp 2006, featuring Spark-o-Phone & other fun stuff
Liberation magazine (French) report on Dorkfest 2006 (Try Babelfish for translation)
National Science Digital Library Report for Math, Engineering, and Technology (July 19, 2002)
IEEE Spectrum magazine, June 2002
Electronics Weekly, 5th June 2002
WorldVillage Family (!) Site of the Day
Yahoo! Pick of the week 22nd May 2000
HiFi News magazine October 98 - copy of article here
Also featured on Slashdot and memepool

Mike Harrison 1998-2011. Email : mike@electricstuff.co.uk