Telford Dorr Annotated Links

This page lists links to things I've found interesting.
[Updated from time to time]

My stuff:

http://flowcon.us
My company website: batch weighing and general process control.

http://animatedantiques.com
My other company website.

http://droidsecrets.webs.com
How to build a headset adapter to connect a standard off-the-shelf cell phone headset to a Droid2.

http://www.iaei.org/magazine/2000/01/determining-proper-loading-for-neon-sign-transformers/
Article on neon transformer loading, written for electrical inspectors.

http://www.thesignsyndicate.com/forums/index.php?/topic/3349-neon-gto-comparison-capacitance-tutorial-public-thread/
Video on capacitance in neon sign circuits, and its effects on operation (requires board membership to view.)

http://flowcon.us/td/sequencer
This is an article on how to build a sequencer (or animator) for neon signs and art projects.

http://flowcon.us/td/vacuumarticle1
This is the first of two articles on basic vacuum measurement, specifically regarding neon tube processing.

http://flowcon.us/td/vacuumarticle2
This is the second of two articles on basic vacuum measurement, specifically regarding neon tube processing.

http://flowcon.us/td/transformerloading
This is an article on measurement techniques for properly loading a neon sign transformer.

http://flowcon.us/td/neondimmer
Article on how neon dimmers work; why a standard lamp dimmer won't work. Also applicable to motor speed controls and other inductive loads.

http://flowcon.us/td/airregulator
Article on how to build a pressure regulated air supply for glass bending fires.

http://www.neonshop.com/neonweb/nn/choke.html
Article on how to assemble a home-made bombarder for processing neon tubes. [Dangerous stuff - don't try this unless you know what you're doing. Not responsible for the outcome.]

http://flowcon.us/td/3phasegenerator
Article on how to assemble a three phase sine wave generator.

http://flowcon.us/td/IsolationFixture
Article on how to assemble a floating voltage test fixture.

http://flowcon.us/td/VdoTachometerFix
A circuit to fix your jumpy VDO tachometer.

http://flowcon.us/td/MiscAuto
Miscellaneous automotive circuits.

http://flowcon.us/td/9pinRelay
Understand and test the VW 9 pin flasher module.

http://flowcon.us/td/FuelSenderRepair
How to repair OEM fuel level senders in early VW Bay Buses, because new replacement aftermarket units are generally crap.

http://flowcon.us/td/LateBayFuelVr
How to build your own fuel gauge voltage regulator for late VW Bay Buses, because new replacement aftermarket units are generally crap.

http://flowcon.us/td/engineBuild
Photo essay on assembling a 1971 VW bus engine, and adding fuel injection.

Ball balance beam video
This is a servo mechanism toy I've been playing with. Ultimately, it will be able to put the ball to any desired position on the beam and keep it there, as well as track vatious input waveforms. It demonstrates how a mechanically unstable system can be stabalized using just electronics. That's Analog (for those too young to remember it) using PID control. I update this from time to time, and will make it a full web page when done. Video views well with VLC Media Player.

http://flowcon.us/td/hwmach
Build a device to flicker a common lightbulb like a candle, using an Arduino.

http://flowcon.us/td/Aref
How to protect an Arduino (AtMega processor) while using an external Aref input voltage, and still maintain precision.

http://flowcon.us/td/RainGauge
How to modify an electronic rain gauge to deliver a minimum pulse width to the mechanical counter, so that it never misses a pulse.

http://flowcon.us/td/buzzsutphin
For those who couldn't be there, a link to pictures of the memorial paddle-out for my good friend Buzz Sutphin, who succumbed to brain cancer at much too early of an age.

http://flowcon.us/td/jukebox
This was an interesting restoration project.

Patents I was involved with:
http://www.google.com/patents/US5287121
http://www.google.com/patents/US5132671

Other people's stuff (alphabetically):

http://www.belljar.net/
Website on all things vacuum, and related experimental physics.

http://dangerousprototypes.com/
A good open source hardware forum; some software. Worth a periodic visit.

http://www.digikey.com/
A good place to get electronic parts. Easy to order from, good stock.

http://www.dilbert.com/
Another good comic. When this starts to describe where you work, take it as a sign that it's time to move on...

http://www.electricstuff.co.uk/
The world of 'empty state' devices, and things that make sparks.

http://www.electrotherapymuseum.com/
A good collection of Tesla stuff.

http://www.grc.com/
Web security stuff from a guy who writes windows utilites in assembly language. Be sure to see "password haystacks", under 'services'.

http://www.hackaday.com/
Website on all things experimental - must read daily. "Hack a Day serves up fresh hacks each day, every day from around the web as well as hacking related news."

http://www.ivorcatt.com/
On the TEM wave and classical electromagnetism - why everything you know may be wrong. Stuff that can make your brain hurt. [Website layout is a bit random - you have to dig a little for the good stuff.]

http://www.johndearmond.com/
Facinating blog on just about everything electronic, neon, energy related, computing, etc., by a guy who knows what he's talking about.

http://www.mouser.com/
Another good place to get electronic parts. Easy to order from, good stock.

http://www.sparkfun.com/
Build something. Learn something.

http://www.willowdesigninc.com/
Bill Louis's website. Bill is a very talented product designer whom I've worked with quite a bit on various projects, and who I highly recommend.

http://xkcd.com/
"A webcomic of romance, sarcasm, math, and language". My favorite on-line comic. Not for liberal-arts majors.