Akashic Guitar effects PCB lookup
OUTPUTPRE-GAIN

1590A · 2 knobs

Five Cats Pedals

Dirty Aztec

Based on the EQD Acapulco Gold· 1 other board clones it

Category
Fuzz· Fuzz, Overdrive
Controls
Output · Pre-Gain
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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RefValueNormalizedTypeNotes
Resistors 2
R11M1MR Axial DIN0207 L6.3mm D2.5mm P7.62mm Horizontal
R268k68kR Axial DIN0207 L6.3mm D2.5mm P7.62mm Horizontal
Capacitors 6
C1100uF100uCP Radial D5.0mm P2.00mm
C2100uF100uCP Radial D5.0mm P2.00mm
C41uF1uCP Radial D5.0mm P2.00mm
C61uF1uCP Radial D5.0mm P2.00mm
C310uF10uCP Radial D5.0mm P2.00mm
C54.7n4.7nC Rect L7.0mm W2.0mm P5.00mm
Diodes 1
D11N4007 1N4007D DO-41 SOD81 P7.62mm Horizontal
ICs 2
U1LM386LM386DIP-8 W7.62mm Socket
U2LM386LM386DIP-8 W7.62mm Socket
Potentiometers 2
OutputA100KA100kPotentiometer Alpha just holes
Pre-GainC500KC500kPotentiometer Alpha just holes
Other 2
logo-domainLOGOLOGOdomain-22mm
logo-DALOGOLOGOlogo-dirty-aztec

Other boards based on the EQD Acapulco Gold