1590A · 2 knobs
Dirty Aztec
Based on the EarthQuaker Devices Acapulco Gold· 13 other boards clone it
- Category
- Fuzz· Fuzz, Overdrive
- Price
- £4.00in stock
From the vendor
Based on the EQD Acapulco Gold with an optional pre-gain mod. The Dirty Aztec is a super distortion board based of the sound of a cranked vintage Model T amplifier. The original version came with just one dial…volume…and by god – this thing is loud!!! So, we added an optional “pre-gain” pot. This replace the volume pot on your guitar, allowing you to control the gain – again, this is an optional extra and if you want to build the board without it – just jumper it!
The tone is set with your guitar, so if you want a darker, moody, doom sound…roll down the tone knob on your guitar.
Pre-Gain Mod
Without the pre-gain pot, this board is….LOUD! The pre-gain acts the same as the volume control on your guitar, so if you don’t want to mess with the guitar volume pot whilst you’re playing – the pre-gain pot is for you! However, if you want a one knob board that will fit in a 1590A and blow your ears off….there’s a simple way to do it.
Use the leg of a diode or some wire, and jumper pins 2 + 3 of the pre-gain pot. This will bypass it. leave pin one empty. If you wanted you could also wire this to a trim pot and have an interal control, the order for the pins goes 1/2/3 starting at the square pad.
That’s it, pre-gain by-passed. When you’re getting used to this pedal, we suggest the pre-gain all the way and slowly start the output at 1 and build up…then play around – it really is a face meltingly loud board!
Sound Clip (i’m not a pro player!)
Recorded with: Fender JA-90 – P90’s on neck pickup on clean channel Fender Blues Deluxe
https://www.five-cats-pedals.co.uk/wp-content/uploads/2021/10/fcp-demo-dirty-aztec.mp3
Schematic
The schematic is in the vendor's build document, page 1. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 15 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 2 | ||||
| R1 | 1M | 1M | R Axial DIN0207 L6.3mm D2.5mm P7.62mm Horizontal | |
| R2 | 68k | 68k | R Axial DIN0207 L6.3mm D2.5mm P7.62mm Horizontal | |
| Capacitors 6 | ||||
| C1 | 100uF | 100u | CP Radial D5.0mm P2.00mm | |
| C2 | 100uF | 100u | CP Radial D5.0mm P2.00mm | |
| C4 | 1uF | 1u | CP Radial D5.0mm P2.00mm | |
| C6 | 1uF | 1u | CP Radial D5.0mm P2.00mm | |
| C3 | 10uF | 10u | CP Radial D5.0mm P2.00mm | |
| C5 | 4.7n | 4.7n | C Rect L7.0mm W2.0mm P5.00mm | |
| Diodes 1 | ||||
| D1 | 1N4007 | 1N4007 | D DO-41 SOD81 P7.62mm Horizontal | |
| ICs 2 | ||||
| U1 | LM386 | LM386 | DIP-8 W7.62mm Socket | |
| U2 | LM386 | LM386 | DIP-8 W7.62mm Socket | |
| Potentiometers 2 | ||||
| Output | A100K | A100k | Potentiometer Alpha just holes | |
| Pre-Gain | C500K | C500k | Potentiometer Alpha just holes | |
| Other 2 | ||||
| logo-domain | LOGO | LOGO | domain-22mm | |
| logo-DA | LOGO | LOGO | logo-dirty-aztec | |
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