Electronics
- Page Contents
- General Links
- Process
Control and Instrumentation
- Electronics suppliers and
data sources
- EMC
- Online Learning
for Free
- Institution
of Electrical Engineers
- Amateur
Radio, Propagation and Antennas
-
- Back to Useful Internet Links Page
- Articles
on PCB design - Trace Impedance, Differential Signal Transmission,
Cross-talk, trace current carrying capacity etc written by Doug Brooks, president of UltraCAD
- PCB trace width calculator
- enter the current and find the width necessary to carry it - given permissible
temperature rise, copper thickness, PCB layer location etc
- PSpice Tutorials
provide a thorough overview of PSpice. The only concept that is not addressed in these tutorials is the specification of
transistors
- Tech OnLine [RealPlayer, .pdf]
For electronics engineers and information technology professionals. After completing the free registration process,
users have access to live and archived Web casts, online courses, and technical
papers
- Technik.net: Tons of Hardware Information
Of principle use to experienced hardware designers but a substantial amount of other information is
provided that is ideal for beginners
- WebEE: The
Electrical Engineering Homepage [.pdf, .zip] A long list of
schematics describes how to build circuits for different applications,
such as audio filters, waveform generators, and battery chargers. A
schematic and instructions are even included that describe how to modify a
Nintendo Game Boy to be used as an oscilloscope
- Programmable
Logic Resources & Downloads A useful list of HDL and FPGA
tools vendors and downloadable evaluations and some free simulation and
synthesis tools
- Many
links on the use of VHDL particularly in space
- Alliance
Home Page - a complete set of free CAD tools and portable libraries
for VLSI design. It includes a VHDL compiler and simulator, logic
synthesis tools, and automatic place and route tools. A complete set of
portable CMOS libraries is provided
- The
ElectricTM VLSI Design System is a complete Electronic Design
Automation (EDA) system that can handle many forms of circuit design,
including: Custom IC layout, Schematic Capture (digital and analog),
Textual Languages such as VHDL and Verilog, Electro-mechanical hybrid
layout, Programmable logic (FPGAs)
- The Circuit
Sage website at: fantastic resource for RF designers - filters
amplifiers inductors etc
- Calculators for just about every scientific
discipline
- Amtech still
have a restricted version of their cable sizing software on
a promotional disk which they will gladly distribute to
anybody who requests it
- DesignNotes.com:
Design Archives gives examples of circuits for a wide range of
applications. Several categories are shown, including audio, motor
control, and digital signal processing. Circuit diagrams, component lists,
and a concise explanation are provided for each item
- Hot
Chips: A Symposium on High Performance Chips (August 2002)
describes cutting-edge microarchitectures and implementations such
as the Itanium 2, GeForce4. Over 25 presentations are available, and more
from previous years can also be accessed
- HyperTransport
Technology: is an architecture that allows data transfer between
chips in excess of ten gigabytes per second. This white paper from
Advanced Micro Devices (AMD), released in October 2002, considers the
potential. The technology, while accommodating high speed demands,
requires relatively little power
- Electronics
Weekly Also publishes the Dial
register of electronics companies in the UK - very useful to be able
to search for organisations by town or post code
- Electronic
Engineering Times is no longer distributed in paper form but is
available by email
- Introduction
into the CAN Bus Technology (pdf file 133 kbyte)
- Bosch
CAN-Specification Version 2.0 (pdf file188 kbyte)
- An excellent
article on Single Wire Earth Return Systems (SWER) in Australia:
Browse back issues for April 2001 "When One Wire is Enough"
- Agilent Technologies: Spectrum
Analysis Amplitude and Frequency Modulation application note [.pdf,
.zip, .hqx, .tar, QuickTime]
- IBM:
Microelectronics 101 starting with semiconductor fabrication, leading
the user through each step of the manufacturing process. Plus some of
today's most significant breakthroughs in computer chip design are
outlined.
- DSP
Design Performance an extraordinary collection of digital signal
processing resources for electrical engineering students or
professionals. 38 freely usable digital filter design applets
divided into finite and infinite impulse response categories, and then
divided again according to band-select or specialty filters plus DSP
tutorials and code segments
- dspGuru: Digital
Signal Processing Central has a good collection of resources for both
beginners and seasoned users.Many open-source software titles can be
freely downloaded, ranging from implementations of DSP algorithms to
compilers and other software development tools. It cover some important
DSP subjects, like finite and infinite impulse response filters and
Fourier transforms. There is also a section called Tribal Knowledge that
is filled with common techniques and tricks that experienced DSP designers
know, "but isn't in the textbooks.
- Verificationlib.org:
Bringing Simulation and Formal Verification Together an initiative to
provide designers, integrators and verification engineers with a single
and vendor-independent interface for design validation." The 200+
page document can be downloaded at no charge after providing an email
address. There are many library definitions given, with example
modules of the assertions in both Verilog and VHDL languages. These
predefined modules can be used by the designer regardless of the type of
verification tool being used.
- Digital
Logic a very good overview site. Particularly interesting
section is devoted to the inner workings of logic gates
- Introduction
to Digital Filters contains equations, theorems, and principles of
filter design spread across many chapters. Several MATLAB utilities and
C++ implementations are also given
- Java
Digital Signal Processing Editor [.pdf] online digital signal
processing system simulation utility. This allows the user to generate
various signals, create filters, and analyze the responses. Other
functions include Fourier Transforms, convolution, autocorrelation, and
speech processing
- Parallel
Port Customizer v2.0 [9k]
W9x/2k/XP FREE uses the single pins of the parallel port to turn on /
off transistors etc. As the GUI version isn't truly real time it
comes with a small dynamic link library (DLL) to link to your own
applications
- IEEE
History Center provides an excellent perspective into some of the
original breakthroughs in electrical design and the more recent
advancements in computer technology
- Datasheet
Locator over 700 electronics manufacturers information in one
centralized location. By directly connecting to the manufacturer's Web
site, the information will always be up-to-date
- PLCS.net: Your
Personal PLC Tutor Site a site with loads of useful tutorials and
instructions
- Industrial process control explained - a short course
approached in a deliberately
non-mathematical and hands on manner
- Alex's
Electronic Resource Library...An Online Guide to Useful Electrical and
Electronic Information
- An
excellent compilation of electronics info from Finland with links to
some other terrific resources such as this
on cabling
- Here's a very handy site for
comms-related issues, aimed at the
non-specialist and maintained by Univ of Warwick as the UK On-line
Users' Group
- A
list of power plugs, voltages, etc., for many countries of the
world
- ADSL links - the
ETSI ADSL specification TS 101 388. The ETSI
standards body ADSL page. ITU
Recommendations - you can get up to three Recommendations free per
year
- Thomas register of European
manufacturers
- Opto 22
Ethernet I/O for process control
- National
Instruments (Labview etc)
- Control
Engineering Magazine
- www.sensor-land.com
- OPC Foundation
- Series DL215
- Parker EMD Homepage
- SoftWIRE Technology-[Download Area]
- Strain Gage Technology
- Adept Scientific - Download Software
- Pressure Transducers, Transmitters, and Sensors from Sensotec
- Load Monitoring Systems - Monitoring Services (UK) LTD
- Strain Torque Load Indicators Amplifiers Electrical Assembly Testing
- Sensor Consultants, Blewbury
- Measurements Group UK Limited
- Brightwell Instruments
- Carel Components - UK source, importer for liquid level and PT100 temperature sensors, Minco etched foil heaters plus industria
- Soclair Electronic - Transducers and Converters
- CAN in Automation (CiA) - Controller Area Network (CAN)
- Data Acquisition from ComputerBoards
- HELIX Technology, Granville-Phillips, CTI Cryogenics
- RDP Electronics LVDT Displacement Transducers. Load Cells, Pressure Transducers, LVDT Signal Conditioning, Acceleration
- National Instruments - Computer-Based Measurement and Automation
- Thames Side - Maywood Limited
- esd electronic system design CANopen, DeviceNet, CAN-Bus, VMEbus, VME, CANscope, CompactPCI, PMC, VxWorks, RTOS-UH, PCI, Xbus
- WIRE ELECTRIC SUPPLIES CATALOG
- Twickenham Scientific Instruments Ltd.
- Twickenham Scientific Instruments - Equipment manuals
- Keithley Instruments, Inc. Manufactures Electronic Test and Measurement Instruments
-
- Masach Technologies Ltd in Israel produce fast and high quality prototypes custom designed RF shields
- Kaelstead (UK)
Custom cable assemblies
- ANIXTER Source of the
online wire and cable handbook
- The IC
Directory offers complete listings of semiconductor
manufacturers and the products they make--including analog,
digital, and special-function ICs--as well as contributed articles
covering a variety of IC-related topics.
- Design
Guide about analog and digital filters. Many basic principles taught in a signal processing class
are discussed, such as sampling a signal, aliasing, and frequency-domain
analysis. The equations and parameters that govern filter operation are well
explained
- The 2002
European Solid-State Circuits Conference papers are all
provided on this Web site
- The next 4 sites are taken from the AEC
links page:
- The Reliability Analysis Center
(RAC) - The Reliability Analysis Center (RAC) is a DOD
Information Analysis Center operated by IIT Research Institute and
sponsored by DTIC and is a DOD focal point for reliability and
maintainability data, information & engineering services.
- MIL-STD-883
Test Methods and Procedures for Microelectronics * - This
standard establishes methods and procedures for testing
microelectronic devices suitable for use within Military and
Aerospace electronic systems. This link provides free download of
test methods and procedures.
- MIL-STD-202
Test Method Standard, Electronic and Electrical Component Parts *
- This standard establishes uniform methods for testing electronic
and electrical component parts, including basic environmental
tests to determine resistance to deleterious effects of natural
elements and conditions surrounding military operations, and
physical and electrical tests. This link provides free download of
test methods and procedures.
- JEDEC Solid State Technology
Association * - The semiconductor engineering standardization
body of the Electronic Industries Alliance (EIA). JEDEC develops
standards and guidelines through its 48 Committees/Subcommittees.
About 300 member companies representing every segment of the
industry actively participate on these committees to develop
standards to meet the industry and user needs. All these
standards can be freely downloaded
- Semicom is supplier for
RF components and cables in the UK
- Telford
Electronics sell second hand instruments
- Kings Electronics designs and manufactures radio frequency connection solutions for the broadcast, telecommunications and aeros
- Surplus electronic
equipment
- Sales-Target.com
- Marconi Applied Technologies manufactures multi kW triodes and tetrodes
- Hearst Electronics Group sites Electronic
products.com - EEM,COM
IC
master
- EEM/Electronic
Engineers Master parametrically searchable database of
integrated circuits "the world's most complete resource of
electronic components and devices"
- Texas Instruments Logic
Knowledge Base
- Re-Cell will put new cells
in old battery packs, another useful company is Absolute
Battery, they supply obselescent types
- Farnell, distributors of electronic, electrical and industrial components. Online ordering and 24 hour delivery as standard.
- Welcome to rswww.com
- ChipDocs
- Datasheets for Electronic Components and Semiconductors
- Adapters, Sockets, Test Clips & Accessories @ Emulation Technology (for BGA,CSP,DIP,PLCC,PGA,PQFP,SOIC,TSOP packages)
- XC4000E
- b.j. wolfe (US), power-supply, temperature-measurement
- The Unusual Diode FAQ - Title Page
- Digi-Key Corporation Home Page
- Intersil Corporation - Search
- Maxim Analog, Mixed-Signal, Power, RF & Fiber Optic ICs
- Philipson Identimark specialise in Cable Identification Systems
- Philips Semiconductors - Home
- Leroys
Web Site
- ChipCenter The Web's Definitive Electronics Resource
- TJNAF useful bookmarks
- Site Web Lemo
- Hirose - Connector manufacturer, Cable assembly, Fibre optics, Crimp technology
- Haredata plug top supplies and chargers
- DealerLinks Radio, Electronic & Hobby Kits
- Welcome to CPC
- Anadigm Welcome
- Unitrode Products From Texas Instruments
- Today
- Schroff
- Cable College
- Molex Welcome Connectors Interconnects electronic passive components, Header, Plug, Receptacle, Switch, Fiber Optic, Socket, PC
- the engineering technology web site for the professional engineer
- PEMNET - Fasteners
- Amphenol UK Online Catalogue
- EM Electronics range of miniature amplifier modules for high resolution temperature measurement and calorimetry. Resolve micro
- ITT Cannon - Products
- Electronic Equipment & Distributors - Companies
- ODU-Steckverbindungssysteme
- Welcome to Hawnt Electronics Limited - Trade Supplier of Electronic Components
- E-tec - The Swiss Connection
- Burr-Brown Products from Texas Instruments
-
Warwick Wireless Ltd -
Radio Modems, Radio Telemetry and Low Cost Radio Modules
-
Applegate Directory UK
- Index Page (Just about alll UK electronics
companies are in here)
-
UK Business Park - trace companies who get
bought up and change name
-
Atlantica
UK Thermionic valves available new and tested- used available.
FREE advice, data and circuit diagrams on request
- http://www.magnavolt.com/magnetic.htm
- Celoxica at
Milton Park - the software that will convert C code directly into
a FPGA without HDL
- Calex Electronics Ltd,
Temperature measurement, signal converters and low cost PSUs
including bench type
- The asset pool -
guaranteed second user equipment
- PCB-Pool complete
Eurocard layouts at £30 per PCB!
- Thurlby Thandar Instruments
(competitively priced test equipment)
- The Engineering
Technology Site - Links to vast sources of engineering
information
- The Thomas Register of
European Manufacturers
- Sourcenet UK planned
to be UKs largest interactive product catalog to be launched at
end of year 2000
- Fee trade
Zone - UK? electronic component sourcing also excess
inventory trading
- Partminer electronic component sourcing,
also try UrgentEnquiry
upwards of 4500 cos. some with e-stores and on-line auctions
- Memec
Programmable logic Distributors
- Major CAD
resource on line (Autodesk and Autocad mostly)
- Capilano Computing -
Home Page (Check out their links page, its
very useful for general electronics info)
- Capilano Computing -
Home of DesignWorks Schematic Capture and
Simulation
- Microchip Technology
Inc.
- Microchip Technology
Inc. File Download Options MPLAB Manual &
Tutorial
- Now
Components - Electronics components excess
stock
- Shielded Windows
- links
to vast sources of information for the
Professional Engineer also check http://www.geartrain.net/
- TestMart
is a neutral third party site devoted to test and
measurement equipment
- Specify-it -
Technical Indexes and Electronics Times,
Electronic Engineering and What's new in
Electronics
- Omnitest
- serial and data-comms protocal analyzers
- Lamda PSUs -
another supplier is http://www.power-supplies.co.uk/
- FUG
the high current PSU manufacturer have
been bought up by this company in N.Y.!
- FCI connectors
- OKW enclosures,
instrument cases and knobs - pdf catalog
- HyperLynx
EMC analysis from Panacea Software
- Kiel Software
C Development kits for C51, 251, 166
- Whats new in
electronics
- HB
Electronics for Maxim, PIC, Phillips,
Siemens, Toshiba etc
- Design
Selector Global
- Flash
8051 microcontrollers
- CPC (free
carriage over £30)
- Farnell
Components
- Maplin
Electronics (free carriage over £25 - £3.36
otherwise)
- RS components
- Capax Industrial
PCs
- Amplicon
Liveline
- RJ45 connectors
- TestMart
Test and measurement - Product databases,
reference data, literature, quotations
- EDN Magazine
- Design News
- Microwaves
and RF
- Electronics Times
- New
Electronics On Line.
- IEE - Searching
IEE WWW via MUSCAT
- Gambica (C&I
assn.)
- Siemens Semis
- Electronics Search FAQ for electronics designers and
Semiconductor search engineers
- More
electronics based suppliers (mostly
UK based)
- Dionics - hard
to find semiconductors
- Microwave products online
- Texas
Instruments Semiconductor Home Page
- Natsemi
- International
Rectifier
- EE Product
news (US WNE)
- Cordis
component resourcing (UK)
- Fastpartrst
component resourcing (USA)
- International Electrotechnical
Commission - contains brief synopses of all current and past IEC
standards
- Downloadable CE mark in
various formats and useful links on the subject of CE marking from
Conformance Engineering Services
- CE Marking -
Frequently Asked Questions
- A
moderated site which can answer any well thought out questions
about protecting electronics and structures from lightning, surges,
harmonics etc
- EMC Information Centre
- APPROVAL - LVD
Info from the Engineering Guide to
European Quality, Standards and
Regulations
- Electromagnetic
Compatibility Links
- Trading
standards leaflet
- Trading
standards (v. useful)
- RFI (monthly
standards bull.)
- The Low Voltage
Directive
- EMC Information Centre
- EMC journal -
massive document!
- Approval
Magazine
- Approval
updated web site
- York EMC
- Assessment
Services
- EDN (US trade
mag)
- EMC faq
- EMC Net group
- Newport
components
-
- Power Electronics /SMPS
design resources
- Topic areas such as SMPS design, standards, tools, and
magnetics
- Information Theory, Inference, and Learning Algorithms
Spanning over 600 pages, an online textbook about information theory
written with the intention of unifying theoretical concepts with practical statistical
communications
- Lessons in Electric Circuits
Six massive volumes comprise this comprehensive online reference of electric
circuits. The first three volumes cover analog circuits, including direct
current, alternating current, and semiconductors. Digital systems are the
topic of the fourth volume, and a quick reference guide to frequently used
equations and practices constitutes the fifth. Each volume can be downloaded
as a single file for easy printing
- The Hobby of Electronic Circuit Engineering [java]
(originally created in Japanese and translated into English
using translation software) provides an extensive overview of electronic circuit
design.
- A book on programmable logic controllers (PLC's),
is presented free of charge and can be downloaded in one large file or in individual
chapters. Readers can learn everything from high-level concepts, like
Boolean logic and operational design planning, to physical details such as
PLC specifications and connectivity
- BOWest Pty
Ltd: Electrical & Project Engineering. Internet resource
for electrical engineers. Many theorems and formulae are
included
- An Engineer's Guide to the Digital Transition [pdf]
written to help engineers make the transition from analog to digital designs and implementations, with a specific focus on
audio and video systems. Everything from high-level system design to
proper routing techniques for different kinds of cables and signals is
covered
- Teaching Information for advanced digital
systems [.pdf] Several informational papers on various
topics. The most common theme among the papers is programmable logic.
Includes two introductions to VHDL and explains concepts such as number systems, digital
data representation, and networks.
- Digital
Signal Processing Tools [.pdf] A collection of seven
Java applets and associated tutorials are available , like
convolution, correlation, the Fourier transform, and
discrete-time applications of each
- University
of Strathclyde: The Z-Transform divided into two main
sections; the first derives the Z-Transform and considers
its properties, while the second describes its
applications for solving various types of mathematical
problems. Some sample problems are given in the
tutorial sections of the site
- The
Semiconductor Applet Service: interactive Java applets
for semiconductor education. Virtual oscilloscopes
display current-voltage characteristics some of the
applets show how different semiconductor materials work at
the atomic level others simulate reading and writing of
recordable compact disks.
- The Scientist and
Engineer's Guide to Digital Signal Processing [.pdf,
.zip] Dr. Steve Smith offers his book about digital signal
processing (DSP) free, in its entirety, on this site. All
33 chapters can be downloaded individually or as a whole.
The book is quite well written, with plenty of figures,
graphs, and illustrations that accompany the text. This
book is excellent for college students in a DSP or signals
communications course.
- Agilent
Technologies: Educator's Corner: covers many aspects
of electronics testing and measurement. The major
categories of instructional material are Basic
Electronics, Radio Frequencies/ Communications, Lightwave/
Optics, and Digital Design/ Logic; each of these has
several interactive lessons, slides, or Java applets that
address specific topics. The site is best suited for
undergraduates in electrical engineering or a related
discipline
- McCann
has made a digitised analogue computer which recovers much
of the diagramatic, visual and recognisable topology
features of analogue computers to give an easy way to
build a model by pointing and linking." The software
comes free.
- MIT's new open learning facilities - openDoor Real World Learning, April 2001
- Electronics
Tutorials, Free
- http://www.iec.org/tutorials/
run by the International Engineering Consortium (a US
organisation, no relationship to the other IEC, the
International Electrotechnical Commission) contains over
100 tutorials on telecommunications topics
- Electronics
Tutorials free tutorials about amplifiers, oscillators, ham
radio, filters, power supply, transmitters, receivers, and radio and
electronics design as well as basic electronics
- Technoline
University (DSPs, linear systems, embedded
controllers, Java, technical standards, wireless..)
- DSP
Guru has links and resources including open source C
code for some basic filters
- Texas
Instruments site for beginners in Signal Processing
includes info on tools and DSP software
- Bores Signal
Processing the E-book costs $30 to access but there is a free basic
introduction too.
- The IEE Library
Catalogue is now searchable on line
- The IEE Consultants Directory
- IEE index to
other resources on the Web
- IEE Oxford Area
Younger Members Section
- IEE YMS virtual
bar registration
- IEE
- Members' E-Mail Alias Registration Form
- The Computer
Forum (IEE)
- IEE Oxford Area
YMS
- IEE Controls Div
registration
- IEE CPD providers
- IEE virtual
colloquium (1 April)
- Jim Hawkins' Java
Radio Calculators
- Racal start-up story and the saga of the Wadley loop radio
design used in their original RA17 reciever:
http://www.webex.net/~skywaves/commrx/RACAL/RA17.htm
http://www.barlowwadley.net/story.htm
http://www.geocities.com/portable_tubes/ra17.html
http://www.recelectronics.demon.co.uk/ra17-ra117.htm
- Canadian
Railway Telegraph History includes an extended listing of
occasions where Morse code has appeared in feature films, either
briefly or as a plot device
- RColours
v1.00 [54k]
W9x/2k/XP FREE will convert a given value into the colour bands
that are used to represent that value - or it will display the
value represented by the given colour bands
Amateur Radio Freeware
W9x/2k/XP FREE a suite of interoperating applications designed to
automate DXing activities. Each application can be independently
installed and utilized; when multiple applications are running,
they sense each other's presence and interoperate
appropriately. DXView: displays DXCC info and country maps;
plots QSOs, spots, beam headings, solar position, and the solar
terminator in real time on a world map. Pathfinder: locates QSL
information from web-accessible sources. Commander: controls and
communicates with Icom, TenTec, Kenwood, and Yaesu radios;
displays frequency-dependent settings for amplifiers and tuners.
WinWarbler: conducts RTTY QSOs, with dual-channel diversity decode
when an external RTTY modem is available.
DXing.com: Web
Resource for Radio Hobbyists
- Samuel
F.B. Morse Papers span diaries, drawings, clippings,
correspondence, maps, and more from 1793 to 1919
- Tube Radio
and Electronics Page
- Sound
Frequency Analyzer v1.0 [31k]
W9x/NT/2k FREE {Visualize your vocals} frequencies up to 44,100
times per second
- Solar Terrestrial Activity
Report
- Amateur Radio FAQ Part
2.1
- Compuserve companion
- GIF image 487x637
pixels
- GIF image 637x825
pixels
- HAM RADIO - the
definitive index!!
- IPS Sydney ASFC -
Current Solar-Terrestrial Environment
- Space Environment Center
Data (NOAA) posts data, some of it updated by the minute, on
auroral activity, solar wind, and geomagnetic storms
- NOAA gopher of solar
cycle plots
- Other Amateur Radio Web
Sites
- RSGB
- RSGB - Index
- RSGB HF comittee
Back to Useful Internet Links Page
- Copyright Bob Anderson
- 12 March 2007