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| AX84 P1 Project News | Posted By system
(on 01/30/2002 @ 14:55)
New File posted (AX84 P1):
Description :Nick Greer's P1 outside
Posted By system
(on 01/30/2002 @ 14:54)
New File posted (AX84 P1):
Description :Nick Greer's P1 innards
Posted By system
(on 01/30/2002 @ 14:53)
New File posted (AX84 P1):
Description :Some P1 Audio from Nick Greer
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| AX84 P1 |
Overview
The P1 is a simple tube amp modeled after the classic small guitar amps
of the 50's and 60's. It's designed to be easily built by a begining builder.
An understanding of the dangers of electricity is required to build this amp, but it has been
successfully built by a number of people with no previous amp building experience. Although it is a practice amp, you can certainly
mic it and use it in a gig.
Be sure to check out the pictures and sound clips below of various flavors of this amp as built by real people.
Features
12AX7 preamp tube provides two stages of preamp gain.
EL84/SV83 power tube in Class A, Single Ended configuration provides a
very loud 5-7 watts of output power.
Bass, Mid and Treble tone controls.
Single knob gain control increases the amps volume while increasing the
amount of overdrive. It doesn't get a pristine clean tone or a raging death
metal tone, but occupies that warm territory in between. Use the amp with
a distortion pedal for added flexibility, or use the volume knob on your
guitar to vary the amount of power-tube overdrive.Revision 11 Information
Revision 11 is probably the final version of this amp. It features a general simplification
of the design and the elimination of seperate 'lite' and 'regular' versions. Very similar
character to earlier revisions with minor simplifications.
Skill Level: beginner --- Status: Ready to Build.
Main Schematics:
SCHEMATIC- P1 Rev 11 Bill of Materials
SCHEMATIC- P1 Rev 11 Schematic
Variation Schematics:
SCHEMATIC- Winnie's Clean P1 Variant using a 6l6 output tube
SCHEMATIC- P1 Rev 10 Schematic as referenced by Dave Sorlien's Theory Document. (Superceded by Rev 11 for new builders)
SCHEMATIC- Roscoe Primrose's Chameleon P1 Variant
Documents:
ADOBE ACROBAT DOCUMENT- Dave Sorlien's Excellent P1 Theory Document
ADOBE ACROBAT DOCUMENT- Dave Sorlien's P1 Wiring Exhibit
ADOBE ACROBAT DOCUMENT- Gary Anwyl's P1 construction guide. Must Read!
ADOBE ACROBAT DOCUMENT- The initial usenet posting that started the AX84 project
DOCUMENT- Chris Hurley's recollection of the first amp build
DOCUMENT- Original 'Modifying the P1 for SV83 Use' document
Media:
IMAGE- Carl Berger's P1 Amp
IMAGE- Carl Berger's P1 Amp
IMAGE- Chris Hurley's first amp
IMAGE- Chris Hurley's first amp
IMAGE- Chris Hurley's P1 Rev 11
IMAGE- Chris Hurley's P1 Rev 11
IMAGE- Chris Hurley's Rev 11 P1 Wiring in Small Case
IMAGE- Chris Hurley's Rev 11 Top View, Small Case
IMAGE- Dave Sorlien's P1 Build
IMAGE- Dave Sorlien's P1 Build
IMAGE- Dave Sorlien's P1 Build
IMAGE- Front View of Randall Aiken's P1 Build
IMAGE- Ken Ritchie's AX84 P1 Amp
IMAGE- Ken Ritchie's AX84 P1 Chassis
IMAGE- Nick Greer's P1 innards
IMAGE- Nick Greer's P1 outside
IMAGE- Pic 2 of Stephen Crown's REAL cool P1.
IMAGE- Pic of Stephen Crown's REAL cool P1.
IMAGE- Rear View of Randall Aiken's P1 Build.
IMAGE- Tommyd3's P1 Rev 11 Amp, Top View
MP3 AUDIO- Chris built something similar to Winnie's Clean P1 variant for a gent with a 6l6. This was recorded by the condenser mic in a Zoom PS-02 with reverb added at that point.
MP3 AUDIO- Chris Hurley's P1 Rev 11 audio demo 1
MP3 AUDIO- Chris Hurley's P1 Rev 11 audio demo 2
MP3 AUDIO- Real cool demo tune by Charlie Lamm and his P1
MP3 AUDIO- Some P1 Audio from Nick Greer
MP3 AUDIO- Tommyd3's P1 Rev 11 Amp, post-mic reverb added
MP3 AUDIO- Winnie demonstrates the P1 distortion and compares the EL84 to a 6v6 output tube
MP3 AUDIO- Winnie explores some clean tone with a P1 equipped with a non EL84 tube
MP3 AUDIO- Yet another P1 Audio Clip from Chris Hurley (rev unknown)
Links:
House of Jim- Has board layouts on lots of AX84 Projects and more
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