Everything for Electronics

Roger Secura

Roger's Articles

The Beginner’s Guide to Digital Electronics
April 2016
Learn how the numbers “1” and “0” changed the world of analog and digital electronics.

Build a Digital Decade Box
February 2016
Having the right tool makes any job easier. This decade box allows you to select a required resistance with a couple of switches — so no more checking with an ohmmeter to see the actual resistance value.

How to Use a Transistor as a Switch
May 2015
The NPN transistor switch can easily solve many design problems.

Build a Wireless Silent Alarm Warning System
December 2013
This is an inexpensive transmitter /receiver system you can build in one night that will let you know if something is amiss.