Mini Guitar Amp
This mini guitar amplifier is based on the Ruby Amp (runoffgroove.com). It delivers ½ Watt at 9V, being perfect as a home practice amp. It has gain and volume control, offering a very dynamic sound on any speaker.Steps
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Created by DHEA
Status: Active
Status: Active
Mini Guitar Amp Step 1 of 4

Effect type: amplifier
Pedal description
This mini guitar amplifier delivers ½ Watt at 9V, being perfect as a home practice amp. It has gain and volume control, offering a very dynamic sound on any speaker.
This amplifier is based on the circuit of the Ruby Amp (runoffgroove.com), a reference DIY project with a lot of documentation in multiple DIY forums. You can also modify the components and use the PCB to design your own amp circuit.
The PCB allows to mount a led (with its resistor) and wire a switch for extra gain. The potentiometers can be directly mounted on the PCB.
Controls
- Volume
- Gain
PCB