Enclosure not stated · 4 knobs
Electro Harmonix Octave MultiplexerVerified
Based on the Electro-Harmonix Octave Multiplexer· 2 other boards clone it
- Category
- Octave / Pitch
- Difficulty
- Difficult
- Build
- Vero· 26×21· 48 cuts, 29 links
- Layout
- Verified · Tagboard Effects marks it as built and working
- Tags
- Electro Harmonix, Multiplexer, Octave
From the post
Here is a layout for a classic pedal.
I've drawn 2 versions: Vintage and Modern.
There are 2 layouts for the Vintage: with and without output boost.
I've added a boost to the Modern layout to avoid volume loss.
You can find the original FSB thread here.
16/01/2017 Layout updated! I've changed the vintage layouts because there were some errors in the schematic.
Thanks to Barcley for pointing out the corrections that I needed to make!
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 30 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- Level A100K pot: named in the legend but no Level wire labels appear on the drawing
- Q 5459: printed without prefix beside the D-S-G transistor, taken as 2N5459
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×4 | 100K | 100k | read from the layout by eye | |
| ×4 | 15K | 15k | read from the layout by eye | |
| ×2 | 18K | 18k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×5 | 10K | 10k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×3 | 27K | 27k | read from the layout by eye | |
| ×2 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 470R | 470 | read from the layout by eye | |
| ×1 | 680R | 680 | read from the layout by eye | |
| ×1 | 180K | 180k | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 5 | ||||
| ×8 | 100n | 100n | read from the layout by eye | |
| ×5 | 22n | 22n | read from the layout by eye | |
| ×1 | 47n | 47n | read from the layout by eye | |
| ×2 | 150n | 150n | read from the layout by eye | |
| ×2 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | 1N4148 | 1N4148 | read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | read from the layout by eye | |
| D3 | 1N4148 | 1N4148 | read from the layout by eye | |
| D4 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 1 | ||||
| ×1 | 2N5459 | 2N5459 | JFET, printed 5459; read from the layout by eye | |
| ICs 2 | ||||
| ×2 | LM324 | LM324 | read from the layout by eye | |
| ×1 | 4013 | 4013 | CMOS dual flip-flop (CD4013); read from the layout by eye | |
| Potentiometers 4 | ||||
| Bass Filter | B100K | B100k | Potentiometer | read from the layout by eye |
| Blend | B100K | B100k | Potentiometer | read from the layout by eye |
| High Filter | B10K | B10k | Potentiometer | read from the layout by eye |
| Level | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Sub | DPDT | DPDT | Switch 2 (Sub); read from the layout by eye | |
Other boards based on the Electro-Harmonix Octave Multiplexer
- Electro Harmonix Octave Multiplexer Dirtbox Layouts
- BigBottoms Madbean · 125B · $13.00