Silver Mica Capacitor, Amp & Guitar Tone Cap, 500pF &ndash; 500V Silver Mica capacitors are valued for their superior tone in guitars, amplifiers, and hi-fi applications High quality caps made with demanding standards, they can dramatically improve the tone of your rig Silver Mica caps are good upgrade for old ceramic disc caps 500pF  500V Dipped In Epoxy Coating, Radial Leads, +/- 5% Tolerance