Crazy Tube Circuits Space Charged V2Space Charged just got super charged! Preserving that warm tube tone of V1 weve added gain and volume boost function to spice up your solos. The core real tube overdrive circuit, courtesy of a 12AY7, is exactly the same but as we listened to our customers feedback we updated the tone control with wider range for brighter sounds available and also included a tight fat switch to shape lower frequencies. Powered from an external 9V DC power supply