- Resistor colour code calculator
- LED series resistor calculator
- Series / parallel resistor calculator
- Capacitance unit converter
- Charge / Energy calculator
- Capacitor code calculator
- Series / parallel capacitor calculator
- Convert colour code to inductance
- Convert inductance to colour code
- Ohm Law calculator
- Potential Divider calculator
- Wheatstone Bridge calculator
- Power (wattage) calculator
- Reactance calculator
- Technical Data
- Beginners Guide
Links - Software
AKNM Circuit Magic - Educational software showing circuit calculations using Kirchoff's laws, Node Voltage and Mesh Current methods. Includes schematic editor and vector diagram editor.
Andreas Waldherr Software Engineering - Manufacture PCB Editor, a very easy to use package with some useful features.
Bells-Hill Simulation Software - Home of CIRSIM analogue electronics simulation software and LOUDSIM loudspeaker simulation software. A demo version of CIRSIM can be downloaded from the site.
Capilano Computing - Canadian distributor of software tools for circuit design & programming.
DIY Calculator - The home of How Computers Do Maths - Companion web site for the book 'How Computers Do Maths' by Clive 'Max' Maxfield (see books links page). Includes downloads and subroutines to accompany the CD-ROM supplied with the book.
Electronics Assistant - A Windows-based program written by Electronics 2000. It includes calculators for resistance, ohms law, power, capacitance and more. A simple program allowing offline use of the interactive calculators on this site. Go here to download it.
EPE FTP Site - Everyday Practical Electronics have an FTP site containing software for microcontroller-based projects in the magazine (see magazines section) as well as a useful resistor code calculator program, and other useful information.
EZRoute2000 - Comprehensive PCB design software and PCB manufacture service. Demo available.
Evil Genius Resistor Attack - A game to teach resistor colour codes. To play move left and right using the arrow keys. 'Shoot' at the attacking resistor by pressing the number key corresponding to the resistor colour. E.g. to kill a yellow resistor move below it and press 4, for a red resistor press 2.
Karnaugh Minimizer - A program for minimising Boolean algebra for logic circuits using Karnaugh maps. Much quicker and easier than doing it by hand! Can produce a schematic or VHDL code from a Boolean equation or truth table.
NL5 Circuit Simulator - Circuit simulation software. Demo version available to download.
Orcad - Manufacture a comprehensive suite of electronics design software, including PSpice, the industry standard simulation package. Unlimited evaluation version available free.
Pico Technology - Manufacture a wide range of virtual instrumentation.
SIMetrix - SPICE or SIMPLIS circuit simulation software. Free fully featured versions are available, subject to generous circuit size limits.
SoftBattery - Useful software including a serial communications program with a number of special functions.
VeeCAD - CAD software for designing stripboard layouts. Takes a netlist from schematic design software and produces a stripboard layout, just like a PCB design program. Free and commercial versions available.
YMEC Software - Real-time virtual instrumentation including a signal generator, oscilloscope, FFT analyser and more. Site includes measurement application notes.