Tweed Fender Champ Rectifier Tube – 5Y3GT
The 1959 tweed Fender Champ is a 5 watt single ended Class A amplifier. That means that it has one rectifier tube – the 5Y3GT. Wikipedia has a brief write up about it. The 5Y3GT is all the way to the left when looking at the electronics. The one in my 1959 Champ was manufactured by RCA. So what does a Rectifier tube do? Again, Wikipedia does a better job explaining it than I could, but basically, it changes the alternating current from your wall into direct current for use in the amp.