Testing how the speed and torque of a small DC motor depend on the frequency of the PWM signal.

Using an Arduino Uno to stream the contents of an EEPROM to a computer for capturing.

Teardown and reverse engineering of the Oceanic Versa Pro.

Taking a look at the guts of a computer designed to work over 100 ft underwater.

Replacing an $85 cable with less than $15 in parts.

A simple demo circuit using a vacuum tube as an electronic switch.

Combining 5 volts and PWM to create -25 volts.

Bit banging all over the place

Breathing new life into a screen salvaged from a Smith Corona electric typewriter.

For when you need a really fancy resistor.

Teaching circuits to undergrads. From Ohm’s law to opamps and microcontrollers.

Modding an old Tek scope to have a manual switch for controlling the x10/x1 indicator light.

One day I decided to play around with potato batteries, a week later I had constructed a 10 cell voltaic pile in a 3D printed enclosure.

Find the most recommended books and authors by merging lists of top 100 books.

Learning analog electronics with a simple voltage booster.