I'm often asked if I do Guitar Amp Modifications on personal equipment.

I do and here's a list of some sample services and mods that are often requested.

First off, you are responsible for shipping costs both ways.

• Basic Run Through of Amp is $99 including parts (except tubes, transformers, multisection caps)
  • Test health/reform multisection can capacitor
  • Replace all wax paper capacitors
  • Check health of all coupling/tone caps replace as needed
  • Replace out of spec resistors
  • Adjust bias voltages as needed
  • Scope waveforms and correct unusual distortion problems.
  • Measure power output into 8 ohms just before clipping
  • 1 - ¼” Microphone Jack installed
  • 1 – ¼” Speaker Jack installed with safety load resistor
  • Specialty or boutique caps are available at extra charge
• Other mods / services
  • Pentode/Triode (or Heptode/Triode) Switch - $20 Includes materials & installation
  • Meter & Bias Mod - $65
    • Includes Meter, 2-Pots, Resistors, Wiring, Switch
    • Allows adjusting Bias of each output tube to ensure even unmatched tubes are sharing current properly.
  • Convert 7868 to 7591 or vice versa - $35 (includes sockets)
  • Each additional 1/4" input or speaker jack $9
  • New manufacture tubes are available for purchase at market prices.
  • Many NOS, Speciality, & Boutique tubes are available inquire about availability and pricing.

 

Other items as requested can be done as well…