Benson Amps Germanium Fuzz Effect Pedal, White With Box - UsedThe Benson Germanium Fuzz in white is designed around two germanium 2N527 OR 2N404 Germanium Transistors. The pedal is designed to gradually warm the transistors and maintain regulated temperature. When the LED is orange, the transistors are warming up to increase their transistor gain and to shift the bias point to the correct voltage. When the LED turns green, the warmer is off because the correct bias and transistor gain have been set. Expect this