CSP026 VINTAGE PHASE 90 DESCRIPTION • Hand-wired circuit board built with original-spec 1975 components • Original high-quality Switchcraft Input/Output jacks and Carling bypass switch • Hand-selected FETs, matched to produce deep and rich phasing • All analog circuitry for warm analog tone POWER The MXR Phase 45 is powered by one 9 volt battery, accessed by removing the bottom plate of the pedal.