These Circuit Trading Cards were originally produced by Arachnid Labs.

Each card has a schematic and short description of a common circuit pattern in electronics. Topics covered include digital, analog, and power electronics. There are 32 cards in total.

These are great if you are looking to learn more about the basics of electrical circuitry.

Circuit Pattern Cards are designed by Arachnid Labs. http://www.arachnidlabs.com
Circuit descriptions and schematics are licensed, and used under the Creative Commons Attribution-ShareAlike 3.0 Unported License ( http://creativecommons.org/licenses/by-sa/3.0/ ). They can be found at https://github.com/arachnidlabs/labs-cards