# Useful EE Links and Search Engines

by berkeman
 Mentor P: 38,912 I came across another good search engine today looking for a datasheet, so I thought I'd try starting this thread for folks to post useful links. The links should be to technical content, and not to paid services. Good free datasheet search engine: http://www.datasheetpro.com/ Good way to check for availability of chips and other parts: http://www.findchips.com/ Good parametric search capabilities (and to order parts): http://www.digikey.com/ Similar to Digikey: http://www.mouser.com/ US Patent Office Database Search Engine: http://patft.uspto.gov/ Google+Mathematica on steroids -- Wolfram Alpha (W|A): http://www.wolframalpha.com/ .
 P: 1,636 Beginner electronics Beginner projects, tutorials, schematics: http://www.hobbyprojects.com/ Various schematics: http://www.electronics-lab.com/index.html More simple schematics: http://www.sentex.ca/~mec1995/gadgets/gadgets.htm Lectures MIT "Circuits and Electronics:" http://www.youtube.com/watch?v=AfQxyVuLeCs Radio Frequency Amateur radio: www.arrl.org Interesting articles on rf/microwave: http://www.microwaves101.com/ More advanced: http://www.mwrf.com/ Latest developments: http://rfdesign.com/ Heavy on ads, but comprehensive: www.rfcafe.com Quick air core inductor calculator: http://www.daycounter.com/Calculator...lculator.phtml
 P: 219 Power engineering conceptual discussions http://electrical-riddles.com
PF Gold
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## Useful EE Links and Search Engines

http://discovercircuits.com/ - All the circuit schematics you will ever need to see theory in action.
 P: 111 Audio and Video Lectures in Electronics and Electrical Engineering This provides a good collection of links to audio/video courses and lectures in electronics and electrical engineering from colleges/universities around the world. http://www.infocobuild.com/education...gineering.html The courses and lectures include electromagnetics, circuits and electronics, microelectronic circuits, digital electronics, analog/digital integrated circuits, VLSI design, digital signal processing, digital communication, nanoelectronics, power electronics, and more.
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 Quote by berkeman I came across another good search engine today looking for a datasheet, so I thought I'd try starting this thread for folks to post useful links. The links should be to technical content, and not to paid services. Good free datasheet search engine: http://www.datasheetpro.com/ Good way to check for availability of chips and other parts: http://www.findchips.com/ Good parametric search capabilities (and to order parts): http://www.digikey.com/ Similar to Digikey: http://www.mouser.com/ US Patent Office Database Search Engine: http://patft.uspto.gov/ Google+Mathematica on steroids -- Wolfram Alpha (W|A): http://www.wolframalpha.com/ .
This is a great thread but let me chime in not necessarily about datasheet search engines but how to get your datasheets picked up by Google, Yahoo and Bing.

When creating or updating your .pdf document (this is the preferred format for most datasheets), you go into the meta data field and enter an appropriate title, description and keywords for the datasheet you would like the search engines to index.

The title is most important. For example, if you are creating or updating an Xray Generator component, the Title would be "Xray Generator and Power Source - Joeblow.com"

The description should be completely relevant, for example: "The xray generators and power sources found on joeblow.com feature ct scanners, security scanners and nuclear medicine devices."

Finally, the keywords would be "xray generator, power source, ct scanner, security scanners, nuclear medicine devices, joeblow"

This is a simplistic view but most data sheets are very technical but always try to put in the title, description and keywords those terms that your larger audience will search on and your datasheets will appear at the top of the search engines and/or will be indexed rapidly.

The above named process is referred to as SEO or search engine optimization, which is the tailoring of your web page or web component so that they will be treated favorably when your website is crawled and indexed. I hope this helps.
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 Quote by shockvalue This is a great thread but let me chime in not necessarily about datasheet search engines but how to get your datasheets picked up by Google, Yahoo and Bing. When creating or updating your .pdf document (this is the preferred format for most datasheets), you go into the meta data field and enter an appropriate title, description and keywords for the datasheet you would like the search engines to index. The title is most important. For example, if you are creating or updating an Xray Generator component, the Title would be "Xray Generator and Power Source - Joeblow.com" The description should be completely relevant, for example: "The xray generators and power sources found on joeblow.com feature ct scanners, security scanners and nuclear medicine devices." Finally, the keywords would be "xray generator, power source, ct scanner, security scanners, nuclear medicine devices, joeblow" This is a simplistic view but most data sheets are very technical but always try to put in the title, description and keywords those terms that your larger audience will search on and your datasheets will appear at the top of the search engines and/or will be indexed rapidly. The above named process is referred to as SEO or search engine optimization, which is the tailoring of your web page or web component so that they will be treated favorably when your website is crawled and indexed. I hope this helps.
 Quote by peterjones Hey thanks for such a great post!!!!
Thanks Peter. The high voltage power supply company of Spellman High Voltage has some examples of this search engine optimization, which I referred to earlier. Their website,

http://www.spellmanhv.com gives examples and if you go to their products page, they have hundreds of datasheets:

http://www.spellmanhv.com/Products/C...plication.aspx

Hope you find this useful.
 Mentor P: 38,912 Wire size info: http://en.wikipedia.org/wiki/American_wire_gauge .
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 Quote by berkeman I came across another good search engine today looking for a datasheet, so I thought I'd try starting this thread for folks to post useful links. The links should be to technical content, and not to paid services. Good free datasheet search engine: http://www.datasheetpro.com/ Good way to check for availability of chips and other parts: http://www.findchips.com/ Good parametric search capabilities (and to order parts): http://www.digikey.com/ Similar to Digikey: http://www.mouser.com/ US Patent Office Database Search Engine: http://patft.uspto.gov/ Google+Mathematica on steroids -- Wolfram Alpha (W|A): http://www.wolframalpha.com/ .
Hi Mr. Berkeman,

I found your links very useful, especially the wolfram alfa. The latest and greatest search engine initiative(s) are in the mobile web arena. Bookmarking from pda's or smartphones is in it's infancy but the search engines are looking for these links. The best way to do this is to have a website with a favorite links section or buttons for facebook, twitter, etc on the page. (See the example at the top of the homepage on http://www.spellmanhv.com/ ). Clicking on these links and having an account allows one to bookmark the associated website via mobile, which gives good credible links to that website.

 P: 1,672 A "shootout" for many common multimeters in the $50 and$100 range. $50 - http://www.eevblog.com/2010/06/04/ee...eter-shootout/$100 - Part 1 - http://www.eevblog.com/2010/07/11/ee...i-t-part-1of2/ Part - 2- http://www.eevblog.com/2010/07/11/ee...i-t-part-2of2/