Want a Whole Lotta Tone? SoZo vintage style .033μF "Yellow Mustard" capacitors (typically used with guitar tone circuits) are are successful recreations of the originals and are hand made to exacting specifications. Used by many top guitar and and amp builders. Specs: .033 Microfarad, 10% tolerance. 500VDC voltage rating. Dimensions: .5/8"L x .3/8" Diameter.