Everything for Electronics

Jim Teixeira

Jim's Articles

Build a Variable Voltage Reference
February 2019
While most voltage references only generate a single voltage, this design offers variable voltage from zero to 10 volts.

A 3-in-1 Tester for Your Lab
November 2016
This DIY piece of test equipment packs a punch!

Build a Frequency Counter
March 2015
Get your “freq” on with the unit presented here.

Hack an LED Desk Lamp
May 2013
Turn an ordinary lamp into a battery operated emergency light.