Everything for Electronics

Roger Secura

Roger's Articles

CNC Routers: Backlash
February 2019
Whether you own or intend to build/buy a CNC router, make it a habit to routinely check for backlash.

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.