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Features
Convert a relay ladder control circuit into a ladder diagram program.
Rapidly develop and test PLC concepts with no wiring!
Use a DS18B20 and a Rasp Pi to generate temperature graphs for monitoring anywhere your Internet connection can reach.
Tutorial on including touch screens into your homebrew projects.
My methodology for identifying the outside foil lead on capacitors.
Learn how to use OpenPLC* which is an open-source Programmable Logic Controller (PLC) that is based on easy-to-use software.
Refurb a HP33 Spice series calculator.
Become an expert on creating your own 555-based designs.
I thought adding a wireless auto alarm to my vintage car would be a breeze. Nope!
Rescue a multimeter with a faded OLED screen using Python and an Arduino.
Build a DMM and basic o'scope for a fraction of the cost!
If it can go wrong, it will.
A new series demonstrating the application of ESP8266-based breakout boards for home automation.
Add years to your soldering iron tips.
Build a “modern” version of the COSMAC VIP.
The creation of the integrated circuit (IC) stands as one of the most important inventions of mankind.
Keep an audio “eye” on your equipment.
Curtain burner resistance line cords create a whole new challenge when it comes to antique radio restoration.
Add a little electronic “chaos” to your life.
See how to make things tick with this educational project.
If it can get tangled, it will.
Empower your projects with batteries.
Evaluate and repair a “restored” McIntosh 240 amp with intermittent failure problems.
A memoir of Forrest Mims, who forged a distinguished scientific career despite having no academic training.
A brief summary of the evolution of the FM car radio.
Continue your exploration of the world of tube-type electronics by following along with the restoration of another classic.
Follow along with the restoration of a domestic classic tuner.
Discover a few pointers to help you come to terms with capacitors.
An introduction to signal reporting techniques.
A quick look at the transistor compound pair detailing its basic operation.
Continue your exploration of the world of tube-type electronics by testing and refurbishing a pair of British-made three-way speakers designed for tube amplifiers.
If you routinely work with tube gear, then an autotransformer belongs on your workbench.
Don’t get burned! Isolation transformers keep you safe!
Vintage and contemporary capacitance meters discussed.
This device is all you need for stereo amps that produce up to 200W per channel.
It’s fun to work on vintage receivers with vintage test gear such as the Simpson 311 VTVM.
Continue your exploration into the world of refurbishing tube-type electronics.
Restoring an amazing find.
Get the tones you want from your electric guitar.
How I dealt with an amplifier cooling fan explosion.
Follow along for the repair and restoration of this 1968 vintage classic from the Black Forrest of West Germany.
Projects
Construct a novel and inexpensive medical instrument for fun, discovery, and teaching.
Here’s a project for kids of all ages who like participating in running games.
Control antenna selection from the comfort of your shack.
Build a circular harp that’s MIDI compatible.
Build a triode RIAA preamplifier as part of a tube-based component system.
Simplify your troubleshooting with this simple signal generator.
Return to an analog listening experience.
Here’s a RaspPi project that collects and live-plots voltage, temperature, and battery capacity data.
Design and build a special electronic version of this old classic.
Build an ultra-linear triode amplifier.
Build an updated version of this popular game using an Arduino.
Build a working three-phase motor for under $15.
Mix old and new technology by repurposing a Smith-Corona PWP 78DS typewriter.
Are you ready for some serious Rock, Paper, Scissors competition?
Simon says build this fun gadget!
Squeeze the daylight out of soda cans for fun and entertainment!
Build a voltage monitoring system with RTOS.
Get your electronics in sync with this super accurate time source.
This circuit makes aligning your telescope to True North simple.
This project addresses an almost-universal need: how to keep your coffee hot!
This toaster oven has more than meets the eye!
Simulate amusement park rides at home with LEDs.
Make your own customizable nightlight with parts you probably have on hand.
Know what elevation you’re at while hiking or driving.
Use your hand to simultaneously control a floating 3D cube while playing EDM sounds.
Upgrade your powerpole project with a touchscreen display.
The “ins and outs” of interfacing analog sensors to a microcontroller’s analog-to-digital converter.
Empower your projects with batteries.
This circuit can help fool would-be thieves!
Columns
by Bryan Bergeron
Vintage Tek: Tube Testers
Tube testers take much of the guessing out of the tube matching game.
Departments
New Products
PicoScope7 Software; New PCB Gerber Viewer Online; Ultra-Nano, Low Profile, Coreless Wing Servo; AC/DC Dual Port Charger/Discharger Power Supply; Analyzer and Charger; Analog Discovery 3
New Products
Portable Network Analyzers; PC-Based Oscilloscopes; Battery Discharger and Analyzer; Allegro Current Sensor Carriers
New Products
Owon Tablet Oscilloscopes, Stereo Tremolo Nano Pulsar, Cat III Hook Clips, Waterproof Sensors, Four-Ch Servo Extension, Two-Stage Viper-Slide Kit, Eight-Ch Servo Power Node
New Products
Express PCB Plus V3.1.1, Handheld Two-Channel Digital Oscilloscopes, Handheld RF Spectrum Analyzers
New Products
AC/DC Multifuntion Smart Charger; Mixed Signal Oscilloscope; 12-Bit High-Res Oscilloscopes
