Akashic Guitar effects circuit lookup
HIGH FILTERBASS FILTERBLENDLEVEL

Enclosure not stated · 4 knobs

Dirtbox Layouts

Electro Harmonix Octave Multiplexer

Based on the Electro-Harmonix Octave Multiplexer· 2 other boards clone it

Category
Octave / Pitch
Controls
High Filter · Bass Filter · Blend · Level
Build
Vero· 28×28· 53 cuts, 32 links
Layout
Unverified · no build reported at Dirtbox Layouts yet
Tags
Electro Harmonix, Octave
Open the layout at Dirtbox Layouts Schematic

From the post

Early vintage version with two quad op amps and post recovery boost stage. Schematic is avaiable HERE.

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.

Parts list 13 rows

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Only the parts the layout names in its legend are listed: the active parts and the pots. The resistor and capacitor values are printed on the parts in the drawing.

ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.

RefValueNormalizedTypeNotes
Diodes 4
D11N4148ocr1N4148from the layout legend
D21N4148ocr1N4148from the layout legend
D31N4148ocr1N4148from the layout legend
D41N5817ocr1N5817from the layout legend
Transistors 2
Q12N5459ocr2N5459from the layout legend
Q22N5088ocr2N5088from the layout legend
ICs 3
IC1LM324ocrLM324from the layout legend
IC2LM324ocrLM324from the layout legend
IC3CD4013ocrCD4013from the layout legend
Potentiometers 4
Bass FilterB10KocrB10kfrom the layout legend
High FilterB100KocrB100kfrom the layout legend
BlendB100KocrB100kfrom the layout legend
LevelA100KocrA100kfrom the layout legend

Other boards based on the Electro-Harmonix Octave Multiplexer