Warm Audio Eqp Wa Tube Replacement Repair Guide

Difficulty

Easy

Steps

4

Time Required

                          10 minutes            

Sections

1

• Tube
• 4 steps

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Introduction

Signs of a bad tube are loss of gain and/or a thin sound out of the unit, even when the EQ is bypassed.

Unless the unit is very old, normally it’s only one tube that needs replacement because it’s gone bad for some reason (mine was during transport). Look for signs like a white staining in the tubes to find out which one needs changing. If not, just choose one of them, change it, test the unit, and if the issue is still present, change the other.

What you need

Step 1

              Unscrew the cover               

• Unplug the unit from the mains power before opening it.
• Remove the screws at the top, sides and back of the unit with a standard phillips screwdriver.

Unplug the unit from the mains power before opening it.

Remove the screws at the top, sides and back of the unit with a standard phillips screwdriver.

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Step 2

              Remove the lid               

• Remove the lid and locate the tubes.

Remove the lid and locate the tubes.

Step 3

              Remove the shields               

• The tubes are covered by a metal shield. To remove this shield, push down a bit and rotate, then pull up the shield.

The tubes are covered by a metal shield. To remove this shield, push down a bit and rotate, then pull up the shield.

Step 4

              Replace the tube               

• Pull out the tube that needs changing. Only the glass part comes out.
• It will probably need some wiggling as you pull.
• When inserting the new tube, pay attention to how it lines up in the socket, make sure it’s completely aligned before pushing, because it will need a good push down and if not aligned correctly, this can bend the tube legs.

Pull out the tube that needs changing. Only the glass part comes out.

It will probably need some wiggling as you pull.

When inserting the new tube, pay attention to how it lines up in the socket, make sure it’s completely aligned before pushing, because it will need a good push down and if not aligned correctly, this can bend the tube legs.

To reassemble your device, follow these instructions in reverse order.

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Author

                                      with 2 other contributors 

                    palako                     

Member since: 02/01/2015

762 Reputation

                                      6 Guides authored                  



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José Ma Palazon - Aug 15, 2017

Reply

¿Y donde encuentras ahora lámparas de esas?

paul.sasser - Jun 18, 2019

Reply

Thanks for the tutorial !

Chickenwatt - Mar 17, 2021

Reply

A big mistake here, there is one 12AX7 and one 12AU7, you should specify where goes the AX7 and where the AU7