These engineering, electronics, and technical websites provide a
wealth of information.
on 3G wireless technology.
555 Timer Circuits
The 555 timer is a simple IC that can be used to make many different
circuits. With this information you will learn how how the 555 works
how to build some of the circuits presented.
+44 (0) 1784 455511 / Staines, England Expertise in technology
from engineer and author Ian Poole. Technical journalism, training
and electronics engineering services.
Amateur Television Quarterly (ATVQ)
Quarterly publication about amateur television and SSTV with
construction articles, local activity, ATV repeater information,
building of antennas, RF filters, helium balloons and R/C models
with ATV and more.
American Institute of Physics
Journals, software, history of physics - very interesting.
American Museum of Radio
Where Discovery Sparks Imagination - located in Bellingham,
Antennas & Microwaves Resources
As a practicing Antenna engineer for some 14 years, this page
probably comes under the heading “old habits die hard”. The contents
are basically things that I have found interesting or useful over
the years or that I am still tinkering with: Previous work; Test
antennas; How to make a reference dipole (designs are best suited
for the frequency range 800-3000 MHz); A few projects I have worked
on; Planar Scanning (a practical look at the surface currents and
voltages on some common antennas); Balanced measurements (calculating
balanced impedances from single ended S-parameter measurements);
Defining, evaluating and using coordinate transform matrices; VNA
Antique Wireless Association
This is a great historical resource! The Antique Wireless Association
is an organization of some 4,000 members linked by a common interest
in the history of electrical and electronic communications.
ASTM International Website
American Society for Testing and Materials. ATCSCC
is one of the most complete collections of BT info on the web.
good RF circuit design stuff here - including lots of software links!
Links to Digi-Key,
Extensive collection of timelines and photos that trace the history
of computers, processors, the Internet (beginning as Darpanet),
memory storage and much more.
schematic/descriptions database, test equipment for sale, forum, &
A collection of 8000+ electronic circuits or schematics.
is targeted at electrical engineering professionals, educators and
students. The site contains tools, reference materials and advice
to assist EEs in improving their skill sets and managing and promoting
links of electronic component manufacturers and tools to help electrical
engineers in their work.
EE Product Center
Editors report on the very latest IC and components to hit the streets,
breaking product information first, helping you make design decisions
EE Times Design Library
Contributors to the library are EEdesign, CommsDesign, Planet
Analog, Embedded.com, EETimes UK and EETimes' In Focus section.
EEWeb is a premier electrical
engineering community that strives to offer its members the best
online resources for hardware designers. EEWeb is independently
owned and operated by co-founders Cody Miller and Joe Wolin. We
have partnered with Digi-Key Corporation as an exclusive sponsor
EFG's Physical Scienc & Engineering References
Physical Sciences and Engineering collection of software and online
Electrical Engineering Sites
Institutions, organizations & labs, engineering related
Corporations, engineering universities, product sites, misc.
Dedicated to the spread of electrical knowledge and expertise,
by David Herres, NH Master Electrician License #11335M
Electronics and Radio Today
An e-zine resource for everyone interested in electronics and
radio. The site gives a huge amount of information about electronics
and radio topics and it is especially useful for anyone studying
electronics. Included on the site are such topics and basic electronics
and radio concepts, basic components, analogue circuits, logic circuits,
radio, ham radio, constructional techniques and much more. By engineer/author
Electronics circuits, plans, diagrams, forums & more.
site which links to selected Engineering News web pages from around
the world. Engineering trivia (engcom.net/engineering/blogcategory/44/81) &
a virtual slide rule (engcom.net/component/option,com_sliderule/Itemid,73).
collection of engineering courses, prototyping kits, and services.
Engineering Statistics Online Handbook
Directed towards teenagers, parents, journalists, and indeed, the
general public. It gives a general idea of the challenging, exciting,
and rewarding career one can expect as a Professional Engineer.
Career-guidance teachers will also give you professional advice,
Association official website.
Find RF &
microwave components, equipment and services - 153,871 RF &
microwave products from over 425 companies listed in 180 categories.
Download hundreds of vendor white papers.
FCC Office of Engineering & Technology
Manages the RF spectrum and provides leadership
to create new opportunities for competitive technologies and services
for the American public.
FCC RF Safety Page
FAQs, cell phone SAR, safety bulletins, facts sheets, guidelines.
Federation of American Scientists (FAS)
Focuses the resources of the scientific and technical
community on some of our nation's most critical challenges.
page of the finishing industry -- metal finishing, allied surface
Includes LCD, LED, schematic symbols and more.
My goal is to make Fourier series and other difficult technical
subjects come to life with interactive programs. By manipulating
these programs, the equations in the textbooks become easier to
understand. Also included are tutorials on Smith Chart, complex
numbers, Fourier transforms, VSWR, and more.
Frank Potter's Science Gems
Great links to great science resources. For students, parents, teachers,
scientists, engineers and mathematicians. More than 14,000 science
resources sorted by category, subcategory, and grade level.
919-876-6220 / Raleigh, NC
Develops unique form, fit and function
antennas for unique applications and requirements. Very simply,
we design and manufacture antennas unlike any other antennas in
the world. Custom designs available.
The Heathkit Virtual Museum
This commemorative virtual showcase takes you back to the Heathkit
age which began in the late 1940's and lasted through the early
1990's. Revisit your favorite kits and experience once again that
excitement of building your first kit -- and the hope that the equipment
would work the first time you turned on the power.
High Technology Finland
Yearly profiles a broad cross-section of the exciting work being
done by Finnish companies and researchers.
menu-driven searches. Users can look for power design information
as it relates to specific application areas, or narrow their searches
by focusing on particular power supply functions, design disciplines,
power converter topologies, component types, or environmental requirements.
A popular topics search locates frequently sought-after design information
on subjects such as energy efficiency, power factor correction,
and LED lighting.
for hobbyist, engineers, students, R&D persons & consultants,
electronic projects, circuits, electronic tutorials, microcontrollers,
diagrams, moving displays, transmitters, receivers, robotic arm,
engineering projects, wide range of electronic materials and solutions.
reviews - performance and features.
How Stuff Works
the people that bring you the books by the same title.
with over 50 million orderable parts.
Consortium - a nonprofit organization dedicated to catalyzing technology
and business progress worldwide in a range of high-technology industries
and their university communities.
IET - Institution of Engineering and Technology
The Institution of Engineering and Technology
is one of the world's leading professional societies for the engineering
and technology community. The IET has more than 150,000 members
in 127 countries and offices in Europe, North America and Asia-Pacific.
The IET provides a global knowledge network to facilitate the exchange
of ideas and promote the positive role of science, engineering and
technology in the world.
Institute of Electrical
and Electronics Engineers.
and technical specifications.
The International Bureau of Weights and Measures
BIPM was set up by the Metre Convention
and has its headquarters near Paris, France. It is financed jointly
by the Member States of the Convention and operates under the exclusive
supervision of the CIPM. Its mandate is to provide the basis for
a single, coherent system of measurements throughout the world,
traceable to the International System of Units (SI).
Institute of Interconnecting
and Packaging Electronic Circuits.
Jim Tonne (WB6BLD)
tonnesoftware.com | tonnesoftware.com/appnotes.html
A technically-oriented site for engineers, technicians and radio
An extensive searchable
database of material data sheets.
Microwave Product Digest
201-569-5870 / Englewood Cliffs, NJ A new product magazine devoted
to information on components, equipment and subsystems for the RF,
microwave and wireless industries.
Welcome to Microwaves101, your number-one source for microwave information
since the previous unenlightened century. It's safe, effective,
all natural, and it works! We're building a practical web resource
covering the fundamental principles of microwave design, just for
microwave engineers like you.
Specifications, standards for military components.
Mr Test Equipment
Free PDFdata sheets for electronic test equipment - technical
documentation for Agilent, HP, Tektronix, Marconi, Acterna, Fluke,
Rohde & Schwarz and LeCroy available. Specializes in sales of
refurbished (reconditioned with full warranty) electronic test and
measurement equipment like oscilloscopes, spectrum analyzers, network
analyzers, signal generators, logic analyzers, etc.
Mobile Tech Today
News & product reviews for mobile tech users.
National Council of
Examiners for Engineering and Surveying the PE licensing people.
National Physics Laboratory
The U.K.'s national measurement Laboratory.
National Science & Technology Education Partnership
Creating partnerships between the business and
National Society of Professional Engineers
Creating partnerships between the business and
NIST's Electronics and Electrical Engineering Lab
The EEEL provides the fundamental basis for
all electrical measurements in the United States. In close consultation
with industry, we tailor research and calibration programs to meet
the most critical measurement needs for the manufacture and operation
of electrical and electronic systems.
NIST's Microectronics Research Program
Goal - To develop techniques and standards that address critical
metrology needs of the U.S. semiconductor industry, including those
defined by industry roadmaps such as the Semiconductor Industry
Nobel Prize Website
site of the Nobel Foundation. Among other things, links to articles
written by Nobel laureates are available.
National Electrical Manufacturers
of Standards and Technology, Boulder, CO.
The data source
for Pb-free electronics assembly.
Mega parts locator search engine.
IBM, U.S., European patent research sites.
reports on cellphones, including technical specifications and photographs.
Where applicable, a direct link into the FCC qualification database
Ian Poole, founder of Adrio Communications
prolific author of many technical books and articles, presents
Radio-Electronics.com: The online resource centre for free radio
and electronics tutorials, articles and data.
dedicated to the webmaster's father, Hans E. Hollmann, who is often
referred to as "Father of Modern Radar and Microwave Technology."
Lots of photos and text on early radar system development.
No, this is not just another website with a Java calculator
for figuring relativistic speeds, lengths, or masses. It is a fairly
comprehensive collection of all matters related to relativity. Topics
like "The FitzGerald-Lorentz Solution to the Michelson-Morley Null
Result," "Stationary vs. Moving Clocks," and "The Heart of
Special Relativity: Lorentz Transformation Equations" are just a
small sampling of what you will find there.
RF Design House
This site is
only in the Korean language.
RF & microwave engineering website. A VerticalNet company.
/ Los Angeles, CA RFID news weblog updated daily.
is a resource for the RF & Microwave Community providing Design
Articles & Tutorials for RF/RFIC Circuit Design and Wireless
Technologies. Lots of links and data on antennas, RFIC, VCOs, ZigBee,
WiMax, Bluetooth, and more.
RF System Design
Free software tools, forum and other resources.
RF World is a resource
site for electrical engineers. We are developing it as an engineering
community site. RF related companies can have a page with their
company info, publish press releases, and be linked through the
components directory. Individuals can read the latest news, publish
technical articles, start discussions, and view upcoming events.
Design's resource for keeping abreast of the RoHS Directive
Sam Barros' Power Labs
A great high voltage gadgetry and experimentation site.
link to the latest research news".
Surface Mount Technology Association
Industry portal site
bringing together providers and users of the products, services,
and information related to electronics manufacturing.
Society of Broadcast Engineers
Like it says.
Society of Women Engineers (SWE)
Premier women's engineering organization.
Links to worldwide museums housing
a variety of technical items of interest including amateur radio,
computer history, electrical scientific apparatus, espionage, science,
and information on technology.
engineering education and information.
titles; 10,000 publishers; 91,000 downloadable documents.
A uniquely valuable
resource for IT professionals, offering the best of both worlds:
A distinctive combination of top-notch original content and one-stop,
contextual access to the resources of CMP's network of industry-leading
Temperature Sensors is a unique, free internet information/education
Web site aimed directly at Engineers, Scientists, Technicians and
Students to help them learn about temperature sensors and how to
effectively use them.
The EE Compenduim
The EE Compendium is a resource for the working electronics engineer,
with book and tool recommendations, microcontroller information,
electronic projects, free source code, industry links, and much
The Engineer's Club
for engineers and technical professionals around the world to find
resources and links to other helpful sites.
TNT (TechNote Time) Electrical Trades Gift Store
352-522-0415 / Dunnellon,
Th premier Ohm's law and novelty gift store for electricians,
the power lineman, electrical engineers, electrical contractors,
apprentices/students and ham radio operators! - Hundreds of electrical
Dedicated to preserving the history of the greatest invention
of the 20th Century.
TV History - the first 75 Years
Divided into eras and contains many photos of TV sets, past
and present, with patents, magazines and timelines.
University of California @ Irvine Libraries
Huge collection of online data on everything
News, info and
University of Washington's Circuits Archive
This is a site devoted to expanding
the availability of circuit designs to engineering students, and
even engineering professionals.
University of San Diego EEE 171
Applied Engineering Electromagnetics,
RF & Microwave Engineering
- lots of good course notes by professor Ernie Kim.
and electronics engineering.
802.11 standard provided by the
Wireless Net DesignLine
Source for how-to information created for the engineering community
by engineers. "Everything you need to know about wireless networking
design." Libraries, blogs, product info and more for Bluetooth,
WLAN, ZigBee, UWB, ISM.
World Science Website
This site is chock-full of good science news that covers astronomy,
archaeology, medicine, physics, biology...
Yahoo! Electrical Engineering
Yahoo!'s collection of sites.
of companies working together to enable reliable, cost-effective,
low-power, wirelessly networked, monitoring and control products
based on an open global standard.