Rectifier Valve ? Many of the vintage amplifiers such as the Vox AC30 , Fender Twin Reverb  use a rectifier valve.  Other amps use modern silicon diodes. The rectifier valve…

You find electrolytic capacitors in the power supply and decoupling of valves in Hifi and guitar amps. They are like a battery because they have a positive and negative terminal….

Your amp is filled with small capacitors as in the picture below.  They come in many different colours so this is jut a sample In simple terms,  is in the…