Introduction

This guide will show you how to disassemble the amplifier to gain sufficient access to the light bulb. Replacing the bulb is an easy fix and worth your time if your amp's light bulb is out.

Image 1/3: Remove the four Phillips head screws on the top of the amp. These screws are significantly longer than the back panel screws. Image 2/3: Remove the quarter inch speaker cable from the jack in the back of the amp. Image 3/3: Unscrew the three remaining screws on the back side of the amp head as indicated by the green circles. Be sure to keep the amp secure as you do this because it will no longer be supported by any screws
  • Take off the back panel by unscrewing the 4 Phillips head screws on the back of the amplifier.

  • Remove the four Phillips head screws on the top of the amp. These screws are significantly longer than the back panel screws.

  • Remove the quarter inch speaker cable from the jack in the back of the amp.

  • Unscrew the three remaining screws on the back side of the amp head as indicated by the green circles. Be sure to keep the amp secure as you do this because it will no longer be supported by any screws

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Image 1/1: Refer to the guides on replacing the [guide|22177|Power Tubes] and [guide|22704|Preamp Tubes] to remove the tubes from the amp head. This is so you can safely set the amp head down without risking breaking a tube.
  • Carefully remove the amplifier head from the speaker cabinet.

  • Refer to the guides on replacing the Power Tubes and Preamp Tubes to remove the tubes from the amp head. This is so you can safely set the amp head down without risking breaking a tube.

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Image 1/2: Image 2/2:
  • Remove the cap covering the light bulb by unscrewing the cap counter clockwise.

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Image 1/2: To replace the light bulb remove the old one through the front of the amp head. Image 2/2: Install the new light bulb through the front of the amp head. Using Needle Nose Pliers twist the light bulb clockwise to complete the installation.
  • Using Needle Nose Pliers twist the light bulb counter clockwise towards the notch in the light bulb housing.

  • To replace the light bulb remove the old one through the front of the amp head.

  • Install the new light bulb through the front of the amp head. Using Needle Nose Pliers twist the light bulb clockwise to complete the installation.

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Conclusion

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

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Andrew Krippner

Member since: 01/21/2014

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Cal Poly, Team 9-27, Maness Winter 2014 Member of Cal Poly, Team 9-27, Maness Winter 2014

CPSU-MANESS-W14S9G27

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One Comment

You just did it the hard way. My light went out on my 65 Twin Reissue, and I just unscrewed the red jewel lens and pushed on the bulb slightly while rotating it coumterclockwise, and the bulb came right out. To replace it, I pushed the new bulb in and rotated it clockwise, screwed the jewel lens back on and it was done. This took 1 minute. Glad I could help.

Teledave - Reply

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