Ruby

Thanks to runoffgroove.com for this for this fine little practice amp.  We added a headphone jack as shown in the project file.  The capacitor and resistor were soldered right onto the quarter-inch headphone jack.  We riveted a 9v battery holder (Mouser part number 534-080) in since there’s no foot switch to hold it in place (as most stompboxes have).

• Link to Ruby Amp Schematic and information
• Ruby Amp PDF Project File