• Amp Cabinet Building

  • Tube Amp Assembly

Tube Amp Building Seminar – 32 hrs

In addition to the electric guitar building elements of the Galloup School curriculum, Bryan has added tube amp building to round out your experience in creating killer electric guitar tone.

In this two-weekend seminar not only will you learn how to build a classic wood amp cabinet, you’ll use it to assemble a replica of a 1950’s tweed tube amp, point-to-point wired for the classic tone that defined the sound of the American music scene. You’ll leave the course with a working amp, hands-on experience, and an understanding of tube amp and cabinet building.

“This four-day intensive expands your knowledge of an amp’s internal workings, refines your cabinet building skills, and improves your wiring technique. You’ll make yourself a point-to-point-wired, vintage style tube amp.” - Bryan Galloup

Four days (32 hours) of class time. Materials included. $1200

Part One: Amp Cabinet Building

Wood Selection

  • Processing lumber
  • Selecting raw materials
  • Cabinet layout

Cabinet Design

  • Joining techniques
  • Speaker selection
  • Cabinet types
  • Close aback vs. open back
  • Vintage cabinet specs

Cabinet Construction

  • Routing dovetails
  • Dimensioning cabinet panels
  • Applying grill cloth
  • Gluing techniques
  • Preparation for finish
  • Installing cabinet hardware

Part Two: Tube Amp Assembly

Tube Amplifier Theory

  • Reading schematics
  • Ohm’s law
  • Tube function
  • Signal chain
  • Tube sag
  • Plate voltages
  • Transformer operation

Component Identification

  • Chassis
  • Transformers
  • Capacitors
  • Resistors
  • Tubes
  • Potentiometers
  • Cabinet
  • Speakers

Tube Amplifier Construction

  • Soldering techniques
  • Mechanical connections
  • Eliminating oscillations
  • Chassis assembly
  • Component installation
  • Speaker installation
  • Troubleshooting

Tube Amplifier Modification

  • Recalculating plate voltages
  • Tube options
  • Transformer alterations
  • Speaker options

Tube Amplifier Theory

  • Reading schematics
  • Ohm’s law
  • Tube function
  • Signal chain
  • Tube sag
  • Plate voltages
  • Transformer operation