ELECTRONICS REFERENCE- ONLINE TEXTBOOKS & LECTURES

Electrical formulas and theorem library

http://www.bowest.com.au/library.html

A free tutorial on electricity and electronics basics

http://www.ibiblio.org/obp/electricCircuits/index.htm

Basic Electronics- Online Ebook with simulations and troubleshooting

http://science-ebooks.com/electronics/basic_electronics.htm

Electricity and Magnetism - MIT video lectures

http://ocw.mit.edu/OcwWeb/Physics/8-02Elec...tures/index.htm

OpAmp circuit collection

http://www.national.com/an/AN/AN-31.pdf

Digital Logic basics

The Power Factor

The Difference between VA & Watts and more...

http://www.xppower.com/pdfs/PowerFactor.pdf

http://www1.control.com/1026228839/index_html

http://www.powervar.com/Eng/ABCs/glossary.asp



According to the pic below, where :
Apparent Power (VA) is the vector product addition of Real Power (W) and Reactive Power (VAR)

Apparent power is what you pay for and real power is what is used to do something useful. The energy/power that you cannot use because of low Power Factor is converted into heat losses in the wiring and circuitry

PF = 1. 0 is an ideal situation, where: Apparent Power = Real Power

Toroid transformers for audio

http://www.plitron.com/audio_chassis.asp

http://www.amplimo.nl/

Electronics Calculators

http://www.aaroncake.net/electronics/math.htm

How to read Capacitor Codes

http://xtronics.com/kits/ccode.htm

Resistors and Capacitors Color Codes

http://www.pmel.org/HandBook/HBpage26.htm

http://www.angelfire.com/electronic/funwit...ding_Codes.html

Capacitor Testing, Safe Discharging and Other Related Information

http://www.repairfaq.org/sam/cap-*test*-('").htm

Do you want to know what DAC is inside your cdp ?

http://www.freeweb.hu/mestertuning/dac.php?lang=en

Earthing Your Hi-Fi - Tricks and Techniques - How to eliminate hum without affecting safety.

http://www.sound.westhost.com/earthing.htm

Ground loop problems and how to get rid of them

http://www.epanorama.net/documents/groundloop/index.html

Audio Wiring and Grounding

http://www.equitech.com/support/wiring.html

SOLEN

A manufacturer of the highest performance loudspeaker crossover parts available and is a distributor of some of the highest quality speaker driver units that you can find.

http://www.solen.ca/

Capacitor Test
From Humble Homemade Hi-fi, a basic idea of the sonic differences between capacitors in loudspeaker filters.

http://www.humblehomemadehifi.com/Cap.html

Mike Harrison - Fascinating Electric Stuff

Antique Glass stuff, Tesla coils and high-voltage stuff, Miscellaneous electric, science & laser stuff...

http://www.electricstuff.co.uk/

Great site!

From Frederick James Camm

"A Beginner's Guide To Radio" 1956.

Caps, caps, caps...



Why Replace Capacitors.
Types of Capacitors.
Identifying Capacitor Values.
Choosing New Capacitors
Replacing Non-Electrolytic Capacitors
Replacing Electrolytic Capacitors
It's Easier Than It Sounds!

All this and more :

http://antiqueradio.org/recap.htm

Electronic Calculators and much much more...

http://www.electronics2000.co.uk/

Physics and electricity interacts with each other in many ways... :

http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html Awesome!

Everything you could ever want to know about every LED ever!

http://ledmuseum.home.att.net/ledleft.htm