Tremolo Effect Circuit for Electric Guitar or Other Musical Instruments

Tremolo circuit is a kind of sound effect. We can see this type of effect is applied  in guitar effect pedals.  Tremolo effect is produced if we modulate the amplitude of an audio signal. The shape of modulating signal can vary from square wave, sawtooth, or sine. When we use a square wave, then the effect produce a knocking-like sound […]

Read more

Funk (Twang) Guitar Effect Box

This is an audio effect circuit that give extra oscillation to your guitar, percussive, or semi percussive instruments, you can call it a funk box. This¬† guitar effect circuit is basically a damped oscillator that is set slightly below its critical oscillation point.¬† The oscillator part is constructed by feeding back the output signal through a bandpass circuit, with the […]

Read more

Mic/Guitar Compressor with Transitor Bias Control

This is a compressor circuit that can be used for dynamic mic, condenser mic, or electric guitar pickup. This circuit doesn’t produce very good sound output, but it has very stable amplitude/volume. This compressor circuit design is unique since it uses base current control for manipulating the gain. Here is the schematic diagram of the circuit: The first and second […]

Read more

Analog Tremolo (Guitar) Sound Effect

Tremolo effect produce an amplitude modulated signal. Unlike vibrato effect that produce frequency modulated, this tremolo effect will produce the same effect as quickly turning up-ad-down your volume control repeatedly. Here is the schematic diagram of the circuit: Q1 is general small signal audio transistor, you can use almost any type of NPN small signal transistors. MFC3304P is a voltage […]

Read more

Guitar Pre-Amplifier

This is simple circuit for Guitar Pre-Amplifier. This circuit has some advantages such as it will work under tough conditions, very simple and has high input impedance. This circuit will not load down electric guitars because of the high input impedance. This circuit can be used to amplify microphones. Here is the circuit:A 9-volt battery is typically used as power […]

Read more
1 2