Component Calculator Wizards

The Component Calculator Wizards will calculate the components that you need for the circuits described in Electronics in Meccano. They will even give you pictures of the components you need!

Please note that they will only work with Microsoft Internet Explorer 4.0 or above.

Click here for the LED resistor wizard LED Resistor Wizard
This wizard works out the current-limiting resistor you need for a given number of LED's and supply voltage.
Click here for the resistor colour code wizard Resistor Colour Code Wizard
Indentify resistors using this wizard. Simply click on the numbers or colours to change them.
Click here for the NE555 astable wizard NE555 Astable Wizard
Work out the components needed for given 'on' and 'off' periods.
Click here for the NE555 monostable wizard NE555 Monostable Wizard
Work out the components needed for a given 'on' period.
Sorry! This wizard is not finished yet!
Download the Wizards so you have them close at hand when you need to do a calculation!
Simply download the wizards.zip file, un-pack it and load the wizind.htm file into Microsoft Internet Explorer.
Edition 3 : 25/2/99

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