Dayton Hamvention @hamvention
2015 #hamvention forums schedule has been published! hamvention.org
Peter Goodhall @2e0sql
Planning Your Contest Station by Craig Thompson K9CT youtu.be/FIqnc9xN3dA #hamr #hamradio
DIY Engineering @DIYEngineering
Build a NAND gate from transistors – Here I am going to show you how to build a NAND gate from NPN transistors.If … ow.ly/2XrmcD
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