The Ruby guitar pedal is an enhanced version of the Little Gem amplifier. It features an input buffer and a volume control that allows for a range of sparkly clean tones to natural overdrive. The pedal is designed to retain treble detail and offers a wide range of gain possibilities.

The Ruby pedal has a 1k Gain pot that acts as a limit for the amount of available gain. By carefully setting the Volume and Gain pots, users can achieve maximum clean volume or kick things into overdrive. The pots are highly interactive, so adjusting one can affect the other. The pedal can be customized with different components to achieve specific tones, such as a Bassman or Hiwatt sound.

Possible modifications for the Ruby pedal include changing the cap and resistor values to achieve different tones, adding a pre-set gain ceiling, or using a 12v power source for increased headroom. These modifications can help users achieve specific tones or enhance the performance of the pedal.

Summary created by AI from the original source.