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Attemptatimer | Electronics Lab

Attemptatimer
Version 1 - Last update: Jun 26, 2017

Will try to make a fully functional 555 timer out of discrete components for students to use in other test circuits NOT just a diagram, NOT just a board design, but a fully functional circuit to stand in until Autodesk makes a 555 for everyone's component library.

Use a combination of these diagrams and parts lists. http://www.instructables.com/id/Build-Your-Own-555-Timer/?ALLSTEPS

http://www.electronics.dit.ie/staff/mtully/555%20folder/555%20timer.htm

2 1k ohm resistors 2 10k ohm resistors 11 4k7 ohm resistors (4k7 means 4.7k) 11 2n3904 NPN transistors or similar 9 2n3906 PNP transistors or similar

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