• Home
  • Buy Parts or Amps
  • Links
  • Media Gallery
  • News
  • Projects
  • More Resources
  • Tone Brewery
  • Safety Info
  • Safety Disclaimer

  • -
  • AX84 Discussion Forum
  • PS-02 Discussion Forum
  • Needless Music

  • Rail Rocket Project News
    Posted By system
    (on 09/21/2000 @ 17:29)
    New File posted (Rail Rocket):
    Description :The Rail Rocket Design Narrative
    Posted By system
    (on 09/03/2000 @ 17:23)
    New File posted (Rail Rocket):
    Description :GIF of the Basic Rail Rocket Amplifier, w/ Tremelo Option

    Rail Rocket


    The Rail Rocket is a brand new design encompassing some of the most desirable features from a variety of tube guitar amps, as well as some new features not commonly found in a conventional amp. Its is designed to be modular and can be built in stages, or all at once, making it managable for the intermediate homebrewer while challenging for the advanced builder.


  • Straight-ahead rock-and-roll amp built around 12ax7 preamp tubes and either 6L6 or EL34 power tubes for an output power of around 30 watts.
  • Bass, Mid and Treble tone controls allow you to shape your sound. Alter the values of the components in the tone stack to tailor your sound.
  • Optional Tremelo effect at the output stage
  • Optional "Mid-Stage" Module provides cranked amp tone at any volume thanks to the Moonlight Power Stage located after the preamp. The Original Moonlight Amp (now an AX84 Project in its own right) has been very favorably reviewed as capturing an authentic cranked tone at less than one watt! Using the existing 6L6/EL34 output section of the Rail Rocket, this tone can be amplified to whatever volume you chose.
  • Optional Reverb Effect puts the Moonlight Mid-Stage to work driving a real reverb tank instead of a passive load for more authentic tone and plenty of reverb.
  • Optional Channel Switching allows you to set up two channels with different drive and reverb settings.
  • Optional Direct Outputs Capture the tone direct to PA or recorder.
  • Modular Design Allows you to build the basic amp and add the features you want, as you are ready. You don't have to build the whole thing before you can try it out! :)
  • Warning: This design has not been completed and is being (mostly) replaced with an upcoming unit. Feel free to build it, but there isn't a ton of information available.

    Skill Level: experienced/advanced --- Status: Ready for test-building
    Main Schematics:
    SCHEMATIC- GIF of the Basic Rail Rocket Amplifier, w/ Tremelo Option
    SCHEMATIC- Includes the Basic Amp plus Mid-Stage Option
    SCHEMATIC- Includes the Basic Amp plus Mid-Stage Option and reverb
    SCHEMATIC- Includes the Basic Amp plus Mid-Stage Option,reverb and switching
    SCHEMATIC- The Power Supply
    Variation Schematics:
    FILE- The Rail Rocket Design narrative... See what Carl was thinking!
    MP3 AUDIO- Carl Berger's preliminary Rail Rocket amp
    House of Jim- Has board layouts on lots of AX84 Projects and more

    AX84.COM content may not be reproduced without the express written consent of Chris Hurley (chrish at --- Last Generated: Mon, Mar 11th, 2002 @ 08:21.