Tools

This section contains a collection of calculators and databases.

Colour code calculator
Work out the value of a resistor.

Radio calculator
Calculate dB, gain, wavelength, swr and efficiency.

Electronics calculator
Calculate rms, peak, Kilowatt-hours, Joules, AWG, SWG (wire sizes) and wire diameters.

Measurements conversions
Converts between Inches and millimetres, Feet and Metres, Yards and Inches, American and British Gallons.