TOT - Tonnes of Tone


In Stock
Product Code:


Tonnes of Tone - Electronic Projects for Guitar and Bass

By Kevin O'Connor, ©1996, ISBN 0-9698-608-2-X

     105 pages, 8-1/2" x 11", spiral bound with clear protective covers;
     65 figures (schematic diagrams)

     View the Table of Contents

Tonnes of Tone features operational information and construction guidelines for an array of useful projects:

  • The "Mandatory Project", intended to prevent future projects from "going up in smoke."
    Also included: tips on setting up a convenient workspace.
  • Acoustic Preamps - save hundreds of dollars with these simple projects that will enable
    you to use your existing amplifier with an acoustic instrument.
  • Experimenter's Power Supply - a dedicated bench supply to power any tube-based project. Supplies enough power for any preamp up to six 12AX7s, or for a small 15W tube amp. Button to view TOT table of contents
  • Electric Guitar Preamp - using two 12AX7s, includes a clean and a dirty channel, with separate EQ for each.
  • Bass Preamps - with an explanation of what is unique to a tube preamp for bass, and how modern techniques can improve tonal flexibility.
  • Small Tube Power Amp - build a 10W-15W power amp and learn the principles of tube amplification.
  • Class-A Solid-State Power Amp - a simple circuit designed for hi-fi is adapted to guitar use.
  • Reverb Unit - build a stand-alone reverb using readily available parts for a classic tube sound.
  • Wide-Range Tremolo Circuit - can be used as a pedal or incorporated into an existing amp
    to free up a tube.

Each project uses off-the-shelf parts that are inexpensive and easy to find. Background information, assembly and testing tips are provided for each circuit, to enhance understanding.

The intended reader should have experience with a soldering iron and multimeter. The ability to read a schematic diagram is helpful but not essential.

Note: "Tonnes" are metric "tons"!

TOT open book


Photos (2)

About London Power

London Power was founded in 1990 by Kevin O'Connor, after two decades of research into innovative audio amplification techniques. Kevin is an audio designer, author and speaker, known for his proprietary methodology called Power Scaling, and for his eleven books on audio subjects. Whether you seek amps, kits or information, you'll find useful answers here on not just the "how" but the "why" of audio amplifier design. Please enjoy the information on this site, and don't hesitate to contact us with questions.

Contact Us

(807) 473-0952
11 am - 6 pm, M-F
PO Box 10012, Thunder Bay, ON P7B 6T6 CANADA