
DG Custom PCB
a-wai/ampfactory
A collection of tube amplifier schematics for guitar and bass

A collection of tube amplifier schematics for guitar and bass
Evil Eddie PCB is an open-source printed circuit board by a-wai, from the a-wai/ampfactory repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 280 × 120 mm with 97 parts on 52 nets, routed with 375 tracks and 7 vias.
Its parts include 37 resistors, 23 capacitors, 10 connectors, 6 ICs and 1 diode. It belongs with the audio and music boards of this library.
Amp Factory is a collection of free (as in "free speech", not "free beer") electronic schematics for tube amplifiers dedicated to guitar and bass.
The documents in the "a-wai" directory are the schematics for amplifiers manufactured by A-wai Amplification, a one-person company building handwired amplifiers in Toulouse, France.
These schematics are licensed under the terms of the version 3 of the GNU General Public License. Therefore, you are granted the right to use, modify and/or redistribute these documents under certain conditions, listed in the GNU General Public License (see LICENSE file or the GNU website at http://www.gnu.org/licenses/).
The schematics are offered in two file formats :
The "contrib" directory holds the schematics for amplifiers not manufactured by A-wai Amplification.
These schematics are the property of their respective owners, while still being offered under the terms of a free software license.
In that respect, they are also provided in a printable pdf version, as well as an editable version.
Finally, the "non-free" directory holds a collection of schematics gathered from the web. These schematics are only available in printable form, and you cannot modify these files.
You can send me your schematics to : info [AT] a-wai [DOTCOM]
Please be aware that any contribution has to relate to an amplifier already built and proven to work as expected, and be offered under a GPL-compatible license, in both printable and editable file formats.
There may be a few exceptions regarding very rare amplifiers which would present a particular interest from a technical point of view, but they must be strictly considered this way -- exceptions.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100k | A-wai_Turrets:R_0.5W | R3, R13, R18, R19, R27, R30, R39 |
| 6 | 1M | A-wai_Turrets:R_0.5W | R8, R15, R25, R34, R35, R36 |
| 6 | 22n | A-wai_Turrets:C_225P_223_400V | C5, C8, C9, C16, C18, C21 |
| 5 | ECC83 | A-wai_Turrets:TUBE_TRIODE | U1, U2, U3, U4, U5 |
| 4 | 10k | A-wai_Turrets:R_0.5W | R2, R4, R17, R44 |
| 3 | 1µ | A-wai_Turrets:C_M150_105_100V | C3, C7, C12 |
| 3 | 220k | A-wai_Turrets:R_0.5W | R6, R24, R32 |
| 2 | 10k/2W | A-wai_Turrets:R_2W | R7, R45 |
| 2 | 10n | A-wai_Turrets:C_225P_103_400V | C14, C23 |
| 2 | 2.2M | A-wai_Turrets:R_0.5W | R21, R26 |
| 2 | 2.2k | A-wai_Turrets:R_0.5W | R31, R37 |
| 2 | 22µ/450V | A-wai_Turrets:CPA_22uF_450V | C1, C24 |
| 2 | 470k | A-wai_Turrets:R_0.5W | R14, R38 |
| 2 | 47k | A-wai_Turrets:R_0.5W | R22, R42 |
| 2 | 47n | A-wai_Turrets:C_225P_473_400V | C10, C20 |
| 2 | 47µ/450V | A-wai_Turrets:CPA_47uF_450V | C4, C25 |
| 1 | 1.5k | A-wai_Turrets:R_0.5W | R10 |
| 1 | 10µ/160V | A-wai_Turrets:CPA_22uF_63V | C15 |
| 1 | 1N4007 | A-wai_Passive:DIODE | D1 |
| 1 | 1k | A-wai_Turrets:R_0.5W | R28 |
| 1 | 1n | A-wai_Turrets:C_225P_472_400V | C11 |
| 1 | 2.2n | A-wai_Turrets:C_225P_472_400V | C6 |
| 1 | 22µ | A-wai_Turrets:CPA_22uF_63V | C13 |
| 1 | 33k | A-wai_Turrets:R_0.5W | R43 |
| 1 | 33n | A-wai_Turrets:C_M150_105_100V | C17 |
| 1 | 33µ/450V | A-wai_Turrets:CPA_33uF_500V | C2 |
| 1 | 39k | A-wai_Turrets:R_0.5W | R16 |
| 1 | 470R | A-wai_Turrets:R_0.5W | R29 |
| 1 | 56k | A-wai_Turrets:R_0.5W | R11 |
| 1 | 6V6 | A-wai_Turrets:TUBE_PENTODE | U6 |
| 1 | 82k | A-wai_Turrets:R_0.5W | R41 |
| 1 | CLN EQ | A-wai_Turrets:TURRET | P4 |
| 1 | CLN EQ GND | A-wai_Turrets:TURRET | P16 |
| 1 | DEPTH | A-wai_Turrets:TURRET | P10 |
| 1 | EARTH | A-wai_Turrets:TURRET | P14 |
| 1 | FROM LD EQ | A-wai_Turrets:TURRET | P6 |
| 1 | G5V2 | A-wai_Misc:relay-G5V2 | K1 |
| 1 | JUMPER | Freetronics:SJ_OPEN | JP1 |
| 1 | LD EQ | A-wai_Turrets:TURRET | P17 |
| 1 | LD GND | A-wai_Turrets:TURRET | P15 |
| 1 | RLY+ | A-wai_Turrets:TURRET | P1 |
| 1 | RLY- | A-wai_Turrets:TURRET | P2 |
| 1 | Ug2 | A-wai_Turrets:TURRET | P11 |
The 79 most common of 97 parts.

a-wai/ampfactory
A collection of tube amplifier schematics for guitar and bass

a-wai/ampfactory
A collection of tube amplifier schematics for guitar and bass

a-wai/ampfactory
A collection of tube amplifier schematics for guitar and bass

a-wai/ampfactory
A collection of tube amplifier schematics for guitar and bass



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cnlohr/cnhardware
My dumping grounds for all my kicad projects and random hardware bringup.
It measures 280 × 120 mm and has 2 copper layers, 1.6 mm thick.
97 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the a-wai/ampfactory repository on GitHub, at the commit this page was made from: the board is a-wai/Evil Eddie/Evil Eddie PCB.kicad_pcb and its schematic a-wai/Dirty Greed/Dirty Greed PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).