radioSPARKS - COMPONENTS

Electronic Components

Resistor Colour Identifier / Calculator v1.2

Note: When I get around to it I might add some other interesting components. There are still some bugs to clear up, mostly on small screen widths. iPad looks fine, which is my target screen size.

Please enable javascript thanks :^)

Notice the colour names? You can change them by just typing in a new colour. Valid entries are: black, brown, red, yellow, green, blue, violet, gray, white, none, silver, gold

Click anywhere to close this dialog.

Both "10GΩ" and "10 gigaΩ" notations are supported. This is case-sensitive so "10mΩ" will not work.

Precision is guessed; 1k and 11k are four band resistors, 111k is five band (usually blue cased in real life). For extra bands, just type a number of non-zero numbers into the resistance input, eg "111" will give you 5 bands.

You can see all the colours by typing 0123456789.

Valid tolerance value are brown 1%, red 2%, gold 5%, silver 10% and none 20% respectively.

There's a fairly useful Javascript API for dealing with resistors. Type "resistor" in your Javascript console to get the current resistor, or use new Resistor(resistance, tolerance) to make a new Resistor object. You can use Resistor.bands() to get the coloured bands.

I'm just the integrator and front-end designer. The original code is on GitHub