Rick-Tone
    Handwired All-Tube Guitar Amplifiers by Rick Campbell
   
Proudly made in Oregon USA since 1984
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SPECS AND SCHEMATICS FOR RICK-TONE AMPS

This page contains brief specs and electrical schematics for some models of Rick-Tone amplifiers. To find the schematic for your amp, you'll need to know its type number.

Please be aware that these amplifiers underwent many changes and improvements over the time span that I was building them, and many units were custom-tailored to individual owners' tastes. That means the schematic drawings on this web site may be useful as a general guide to the workings of the amplifier, but it will be quite rare for the circuit of your individual Rick-Tone amplifier to exactly match the schematic from this web site. In some amps the differences are as simple as a few resistor values different from the drawing, while some amps exhibit more radical departures from the drawings.

High Voltage Warning!
CAUTION: This web site contains information about high voltage electronic circuits intended for qualified service technicians. High voltage electricity can be dangerous or even lethal if appropriate safety precautions are not observed. Circuits may still contain dangerous high voltage electricity even when unplugged and switched off. If you don't know what you're doing, don't attempt to build, repair, modify, or otherwise work on such circuits yourself. Any use of the information on this web site is AT YOUR OWN RISK. The author(s) of this web site disclaim any and all liability for consequences of your use of this information.

Type 6 Amplifier:

  • Topology: Single-ended.
  • Preamp Tube(s): (1) 12AX7.
  • Output Tube(s): (1) 6K6, 6V6, 6L6, 6CA7, or EL34.
  • Rectifier: Some versions had 6X5GT tube, some versions had silicon diode rectifiers.
  • Controls: Volume, tone, and (some versions) 2-way or 3-way personality switch.
  • Audio Power: 3-8 Watts depending on output tube and power supply voltage.
  • Schematic: PDF link

Type 8 Amplifier:

  • Topology: Single-ended.
  • Preamp Tube(s): (1) 12AX7.
  • Output Tube(s): (1) 6V6, 6L6, 6CA7, or EL34.
  • Rectifier: Some versions had 5Y3 tube, some versions had silicon diode rectifiers.
  • Controls: Volume, tone, and (some versions) 2-way or 3-way personality switch.
  • Audio Power: 4-12 Watts depending on output tube and power supply voltage.
  • Schematic: PDF link

Type 9 Amplifier:

  • Topology: Single-ended.
  • Preamp Tube(s): (1) 6AU6 or 6BA6
  • Output Tube(s): (1) 6AU6 or 6BA6
  • Rectifier: silicon diodes
  • Controls: Volume, tone.
  • Audio Power: 300mW (1/3 Watt)
  • Schematic: UNAVAILABLE
  • Note: Only a handful of these were built.

Type 11 Amplifier:

  • Topology: Class AB Push-Pull.
  • Preamp Tube(s): (2) 12AX7.
  • Output Tube(s): (2) 6L6, 6CA7, or EL34.
  • Rectifier: Some versions had 5Y3 or 5U4GB tube, some versions had silicon diode rectifiers.
  • Controls: Volume, bass, treble. Some versions had gain or second volume control. Some versions had bass/mid/treble controls. Some versions had presence control.
  • Audio Power: 28-35 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Heartbreaker model amplifier. Later in 1996, the Mesa-Boogie company made an unrelated amp also called the Heartbreaker.

Type 12 Amplifier:

  • The identifier ''Type 12'' was usually used to refer to custom versions of the Type 11. Some were higher power, some had extra features, some had two channels, etc. Refer to the Type 11 schematic for the basics.

Type 13 Amplifier:

  • Topology: Single-ended.
  • Preamp Tube(s): (1) 6SJ7 or 6SK7.
  • Output Tube(s): (1) 6L6 or EL34.
  • Rectifier: Early versions had 5Y3 tube rectifier. Later versions had silicon diodes.
  • Controls: Volume, tone.
  • Audio Power: 8-10 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Warthog model amplifier.

Type 16 Amplifier:

  • Topology: Class AB Push-Pull.
  • Preamp Tube(s): (2) 12AX7.
  • Output Tube(s): (2) 6V6GT.
  • Rectifier: Some versions had 5Y3 tube rectifier, some versions had silicon diode rectifiers.
  • Controls: Volume, bass, treble. Some versions had gain or second volume control. Some versions had bass/mid/treble controls. Some versions had presence control.
  • Audio Power: 15-20 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Neptune model amplifier.

Type 17 Amplifier:

  • Topology: Single-ended.
  • Preamp Tube(s): (1) 12AX7.
  • Output Tube(s): (1) 6AQ5 or EL90.
  • Rectifier: (1) 6X4.
  • Controls: Volume, tone.
  • Audio Power: 4 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Mercury model amplifier.

Type 18 Amplifier:

  • Topology: Single-ended.
  • Preamp Tube(s): (1) 12AT7.
  • Output Tube(s): (1) 6AQ5 or EL90.
  • Rectifier: Silicon diodes.
  • Controls: Volume, tone.
  • Audio Power: 2.5 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Cupid model amplifier.

Type 19 Amplifier:

  • Topology: Single-ended.
  • Preamp Tube(s): (1) 12AT7.
  • Output Tube(s): (1) 6BQ5 or EL84.
  • Rectifier: Silicon diodes.
  • Controls: Volume, tone.
  • Audio Power: 4 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Cupid X.O. model amplifier.

Type 20 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (2) 12AX7.
  • Output Tube(s): (2) 6AQ5 or EL90.
  • Rectifier: Silicon diodes.
  • Controls: Volume, bass, treble. Some versions had second volume or gain control. Some versions had single tone control or treble/mid/bass tone controls.
  • Audio Power: 6-10 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Baby Heartbreaker or Heartbreaker Junior model amplifier.

Type 22 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (2) 12AX7.
  • Output Tube(s): (4) 6AQ5 or EL90.
  • Rectifier: Silicon diodes.
  • Controls: Volume, bass, treble. Some versions had second volume or gain control. Some versions had single tone control or treble/mid/bass tone controls.
  • Audio Power: 8-15 Watts.
  • Schematic: PDF link

Type 26 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (2) 12AX7.
  • Output Tube(s): (4) 6L6, 6CA7, or EL34.
  • Rectifier: Silicon diodes.
  • Controls: Volume, gain, treble, bass.
  • Audio Power: 45 Watts.
  • Schematic: UNAVAILABLE
  • Note: Early versions of this amp were called the Heartbreaker X.O. model. Similar circuit to Type 11 but with four output tubes instead of two.

Type 31 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (2) 12AX7.
  • Output Tube(s): (2) 6BQ5 or EL84.
  • Rectifier: Tube rectifier in some versions. Silicon diodes in some versions.
  • Controls: Volume, gain, treble, bass.
  • Audio Power: 12-15 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Jupiter model amplifier.

Type 32 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (2) 12AX7.
  • Output Tube(s): (4) 6BQ5 or EL84.
  • Rectifier: Tube rectifier in some versions. Silicon diodes in some versions.
  • Controls: Volume, gain, treble, bass.
  • Audio Power: 24-30 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Jupiter X.O. model amplifier.

Type 33 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (2) 12AX7.
  • Output Tube(s): (4) 6V6GT.
  • Rectifier: Tube rectifier in some versions. Silicon diodes in some versions.
  • Controls: Volume, gain, treble, bass.
  • Audio Power: 30-40 Watts.
  • Schematic: PDF link
  • Note: Early versions of this amp were called the Neptune X.O. model amplifier.

Type 38 Amplifier:

  • Topology: Single-ended.
  • Preamp Tube(s): (1) 12AX7.
  • Output Tube(s): (1) 6V6GT.
  • Rectifier: (1) 5Y3 or 6X5GT.
  • Controls: One volume knob.
  • Audio Power: 6 Watts.
  • Schematic: UNAVAILABLE
  • Note: Some versions of this were called the Little Tramp model amplifier.

F16 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (2) 12AX7.
  • Output Tube(s): (2) 6V6GT.
  • Rectifier: (1) 5Y3.
  • Controls: Preamp volume, master volume, tone.
  • Audio Power: 16 Watts.
  • Schematic: UNAVAILABLE

RTM16 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (3) 12AX7.
  • Output Tube(s): (2) EL84.
  • Rectifier: 5Y3 tube in some versions. Silicon diodes in some versions.
  • Controls: Preamp volume, master volume, treble, bass, presence.
  • Audio Power: 16 Watts.
  • Schematic: UNAVAILABLE

RTM20 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (3) 12AX7.
  • Output Tube(s): (2) 6V6GT.
  • Rectifier: 5Y3 tube in some versions. Silicon diodes in some versions.
  • Controls: Preamp volume, master volume, treble, bass, presence.
  • Audio Power: 20 Watts.
  • Schematic: UNAVAILABLE

RTM40 Amplifier:

  • Topology: Class AB push-pull.
  • Preamp Tube(s): (3) 12AX7.
  • Output Tube(s): (2) 6L6GC.
  • Rectifier: (1) 5U4GB.
  • Controls: Preamp volume, master volume, treble, bass, presence.
  • Audio Power: 45 Watts.
  • Schematic: UNAVAILABLE

Tube-O-Drive: Tube-powered volume boost (overdrive) box.

Trem-O-Drive: Tube-powered tremolo and overdrive box.

What If My Amp's Type/Model Isn't Listed Here?

If you need a schematic for a Rick-ToneTM or Rick Campbell amplifier or effect that's not on this page, let me know what type number or model of device you have and I'll try to get the schematic drawn up if I still have the necessary technical information in my records. Unfortunately, some notes and paper drawings were lost or damaged over the years, so it might not be possible to get the schematic for every type or model of amplifier.

 
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Annoying But Necessary Legal Stuff: All site design, drawings, photographs, graphics, and written material Copyright © 1984-2018 by Rick Campbell except where otherwise stated herein. All rights reserved worldwide. Unauthorized reproduction or distribution of material from this publication is a violation of U.S. and international copyright and other applicable laws. Any use of the information contained herein is entirely at the user's own risk. The author(s) of this web site explicitly disclaim any liability for consequences of your use of the information contained herein. "Rick-Tone" is a trademark, and may not be used elsewhere without express consent. Availability, pricing, and other details of any products or services that may be described herein are subject to change without notice.