User:Omegatron

I love Wikipedia.

I am an electronics/DSP engineer working in the field of pro audio equipment. I also enjoy music; listening (experimental electronic, metal, indie rock or whatever), creation (computer synthesis/recording, homemade electric violin), and performing. Articles I contribute to will probably be related to these things.

I am also working on the Electronics wikibook, if slowly.

I read an article somewhere that convinced me that most Latin or foreign phrases really have no use in English, and just alienate certain classes of people, and I have been casually changing them into English equivalents when I run across them. I wish I could find the article...

The rest of this page is just notes to myself, basically.

Don't defend your beliefs. Test them.

Articles I am currently working on

Audio timescale-pitch modification
- Add more detailed info
Decibel

Transmission gate

RC circuit
RLC circuit
Electronic filter - This needs a list of butterworth, chebyshev, etc. and diagrams?

Electronic oscillator

Resonance

signal processing versions of
- tie these three all together. don't forget circular versions and Fourier transform methods.

Thermoelectricity
Peltier-Seebeck effect
Thermionic emission
Thermopower
- more details on emission without electricity

Articles I am basically done contributing to

Electronics
- Gyrator, Schmitt trigger, Comparator, Voltage divider, Current mirror, Series and parallel circuits, Resistor, Capacitor, Electrolytic capacitor, Inductor, Bel, Darlington transistor, Electronic amplifier, Jack plug, Operational amplifier, Flip flop, Transconductance

Signal processing
- Short term Fourier transform, Spectrogram, Chirp, Audio system measurements, Audiophile

Electromagnetics
- Ferrofluid, Magnetic levitation, Magnetic levitation train, Magnet, Hysteresis, Halbach array, Solenoid, Earnshaw's theorem, Electric charge, Triboelectric effect, Static electricity

Thermodynamics
- Heat transfer, Fire, Frederick Guthrie, Owen Willans Richardson, Richardson constant, Thermal diode

Physics
- Sonoluminescence, Bubble fusion, List of nuclear accidents, Nuclear accident terminology, Ball lightning

Geology
- Cleavage, Dolomite

Biology
- Animal shell

Music
- Mathematics of musical scales, Physics of music, Beat, Mixing console, Electric violin, Electroencephalophone, Computer music programming languages

Rad chilies
- Achewood

Electronics diagrams

I have been making electronics diagrams using klunky schematic editor, and modifying and annotating the screen shots in paint shop. I convert them to 2-color (they are originally JPEGs with several shades of white) and save them as PNG, with transparent backgrounds. They tend to be very small (~1 KB). I have been using Arial size 10 for labels, bolded for titles, but I may switch to Tahoma since it has a nicer I and is a bit easier to read. I welcome requests and suggestions.

See Omegatron/Gallery.

Modified version of Klunky

I have made a modified version of Klunky, reducing the file sizes of the images and adding a bunch more images, such as batteries and voltmeters, etc. Also it just runs a lot faster if you have it on your own machine. It is available for download from http://mysite.verizon.net/negatron/klunky.zip Just unzip to a directory and open klunky.html. The author of the original said effectively that it was open-source, though I wasn't able to actually get a reply from him about the modification. If you know javascript and want to make it work in more browsers, that would be helpful...

Forced PNG rendering

I figured out a way to force PNG rendering of TeX markup, as it was needed on the resistor page. It is possible to force the formula to render as PNG, without affecting the display of the formula, by adding \, (small space) at the end of the formula (where it is not rendered). This will force PNG if the user is in "HTML if simple" mode, but not for "HTML if possible" mode (math rendering settings in Preferences).

You can also use \,\! (small space and negative space, which cancel out) anywhere inside the math tags. This does force PNG in "HTML if possible" mode, unlike \,.

This could be useful to keep the rendering of formulae in a proof consistent, for example, or to fix formulae that render incorrectly in HTML (at one time, a^{2+2} rendered with an extra underscore), or to demonstrate how something is rendered when it would normally show up as HTML.

For instance:

Syntax	How it looks rendered
a^{2+2}	$a^{2+2}$
a^{2\,\!+2} renders the same	$a^{2\,\!+2}$
a^{2+2} \, renders the same	$a^{2+2}\,$
a^{2\,+2} is bad	$a^{2\,+2}$
\int_{-N}^{N} e^x\, dx	$\int _{-N}^{N}e^{x}\,dx$
\int_{-N}^{N} e^x\, dx \,	$\int _{-N}^{N}e^{x}\,dx\,$
\int_{-N}^{N} e^x\, dx \,\!	$\int _{-N}^{N}e^{x}\,dx\,\!$
\,\!\int_{-\,\!\,\!\,\!N}^{N} \,\!\,\!\,\!e\,\!^x\,\!\, dx \,\!	$\,\!\int _{-\,\!\,\!\,\!N}^{N}\,\!\,\!\,\!e\,\!^{x}\,\!\,dx\,\!$