Take a look back at how the serious study of radio waves was launched.
More Tricks with Old-School Digital Clocks
by Bryant Julstrom
Variations and suggestions for building discrete-logic clocks.
C Preprocessor Reduces Debug Headaches
by Jon Titus
Take advantage of C preprocessor operations.
DIY Biotech: Open Source PCR Thermocycler
by Bryan Bergeron
#2 in a series of DIY Biotech articles.
Your Amigo Does Bluetooth
by Dane Weston
Explore Bluetooth using the Amigo breadboard and Color BASIC serial interface.
An ESP8266 Live Wi-Fi Webcam
by Benjamin Robson ,Kathiresan Muthiah
Build a live webcam using the ESP8266 and an Android phone.
Build an Internet Digital Clock
by Theron Wierenga ,Daniel Millison
Time to build this digital clock that connects via Wi-Fi to the Internet to not only display the usual time, date, temperature, and humidity, but to also be able to retrieve things from the Internet like the weather or weather forecast and stock market reports as well.
Build the Laser Pencil Engraver
by David Goodsell
Customize pencils for friends and family.
Build a Fun Stylophone
by Alexander Krylov
This unique musical gadget makes learning how to write fun!
Build an RF Frequency Counter Buffer for HF
by Dwayne Kincaid
This RF buffer is a handy tool you’ll remember every time you use a frequency counter.
The Ham’s Wireless Workbench by H. Ward Silver Rotators The rotator is worth installing carefully and being treated with care. After all, your ham radio success turns on them!
Q&A by Kristen McIntyre Electronics Q&A (01.2019) Read about girding for battle, battle language, who needs wires, and adrift in time.
Near Space by L. Paul Verhage Cosmic Rays Redux All about muons and the detector I used to measure their flux.
Open Communication by Louis E. Frenzel IoT Made Easy It’s getting easier than ever to make your own stuff to connect to the Internet via IoT.
New Products (01.2019) SBC TS-7180 in Engineering Sampling, New Generation of Value Instruments, Real Time Streaming
The Ergonomics of Learning by Bryan Bergeron Having the right tools for different people.