DIY electronics

My first impression was that I had finally assembled the best overdrive in my entire life. For the first time, a cheap Squier Bullet Mustang electric guitar with stock humbuckers sounded equally good with all the cabinets I usually simulate and switch between when testing a new pedal.

Have you ever made a processor? I did. Took me just 12 microchips and a clock generator. The processor can execute several commands, and programs can be written for it. The program code and input data are entered using micro switches, and the state of the output register is displayed by four LEDs, according to the number of bits.

The fuzz effect's history began the same day the history of rock 'n' roll began. Today, we will study the circuit and history of the pedal, which is copied and improved by dozens, if not hundreds of companies and masters. And, of course, we will build and listen to our copy.

The Hermida Zendrive guitar pedal we will study, assemble and listen to today is a true masterpiece. Many say its sound is close to the Holy Grail of guitar amplification - Dumble Overdrive Special.

An electronic clock without a microcontroller is a circuitry masterpiece that can be looked at forever! Today we continue to explore the practical possibilities of pure logic.

Nowadays, homemade electronic products on microcontrollers are trendy. I am even more interested in assembling different devices with simple logic circuits. Their operating principle is more visual, which gives me aesthetic pleasure. Today we are going to show you four simple devices. Three of them are based on flip-flops, and the fourth one, which we will start with, could use a flip-flop.

Many guitarists consider the DS-1 to be the worst-sounding guitar pedal. Could this 1978 Roland design be a failure and is now hopelessly outdated? We can get a good sound out of this classic pedal, too. For that, we'll put it, listen to it, and start by studying the circuitry.

DIY voltage-boosting LED driver How is it assembled? How do you convert an existing one to suit your needs?

Do you want dynamic LED turn signals for your bicycle? Do you also want a dynamic brake light? (in part two) Or maybe you want an emergency signal? (in part two) And all that WITHOUT a microcontroller? (only logic circuits)