Introduction
Preamp tubes play an important role in increasing sound volume. These devices are responsible for creating a slight increase in a sound wave to prepare it for further amplification from the power vacuum tubes. Because these two types of tubes work so closely together, it is important to check the preamp tubes along with the power tubes when the amplifier seems faulty.
What you need
-
-
Take off the back panel by unscrewing the four Phillips head screws on the back of the amplifier. You will find the six preamp tubes are the smaller ones on the right. (The picture only shows five of the six.)
-
-
To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
Cancel: I did not complete this guide.
2 other people completed this guide.