Guitar and audio
Pedals, amplifiers, tuners and other circuits you can hear.
7 builds
VideoThe fuzz pedal Jimi Hendrix played
A recreation of the Fuzz Face, the two transistor fuzz pedal Jimi Hendrix played, with fuzz and volume knobs.
14 parts · 18 wires
Guitar and audio
VideoThe amplifier inside a million kit speakers
The LM386 minimum parts amplifier, the chip inside countless kit speakers, with a volume knob and a terminal for a small speaker.
10 parts · 17 wires
Guitar and audio
VideoThe two-knob synth from 1980 still sounds like a broken robot
A two knob noise box from a pair of 555 timers. It makes the stepped, gritty square wave tone people have built since 1980.
11 parts · 17 wires
Guitar and audioGames and toys
VideoThe circuit inside every guitar pedal
A one transistor clean boost that makes a guitar about twenty times louder, with a volume knob. The core of most pedals.
11 parts · 11 wires
Guitar and audio
VideoI built the siren for my police light
A wailing police siren from two 555 timers: a slow one sweeps the pitch of a fast one up and down into a small speaker.
12 parts · 24 wires
Guitar and audioGames and toys
Premieres Oct 16A Fender amp's treble, middle and bass knobs are just this
The passive tone stack behind a classic Fender amp's treble, middle and bass knobs: three pots, three caps and one resistor.
9 parts · 9 wires
Guitar and audio
Premieres Oct 21A metronome you can see, and hear, from one 555
A metronome from one 555 timer: an LED flashes and a buzzer clicks on every beat, from about 36 to 206 beats a minute.
11 parts · 18 wires
Guitar and audioTimers and logic
Have your own idea?
Drop your parts on a perfboard grid, route the wires, and plan the whole build before you cut a single wire.
Design it in PerfBoard