Enclosure not stated · 4 knobs
Bixonic Expandora
Based on the Bixonic Expandora· 7 other boards clone it
- Category
- Distortion
- Difficulty
- Medium
- Build
- Vero· 23×20· 43 cuts, 21 links
- Layout
- Unverified · no build reported at Tagboard Effects yet
- Tags
- Bixonic, Distortion, Expandora, Overdrive
From the post
An old circuit that was missing from the main page.
There was a layout by Harald Sabro in the forum section but this one should be easier to build.
I've taken the "Bite" control from Codtone's Expandra.
You can remove it by adding a link between Bite 3 and 2.
I've also added two more layouts, one with "Forbidden" mod and "Edge" pot as suggested by Dino and one for the Expandora II.
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 39 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this layout was not sure of
- 43K right of the 1n film cap, left of the upper 308N: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| ×3 | 2M2 | 2.2M | read from the layout by eye | |
| ×3 | 1K1 | 1.1k | read from the layout by eye | |
| ×2 | 47R | 47 | read from the layout by eye | |
| ×2 | 560R | 560 | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 43K | 43k | read from the layout by eye | |
| ×1 | 51K | 51k | read from the layout by eye | |
| ×1 | 820K | 820k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 1K5 | 1.5k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 11 | ||||
| ×2 | 33p | 33p | read from the layout by eye | |
| ×1 | 100p | 100p | read from the layout by eye | |
| ×1 | 1n | 1n | read from the layout by eye | |
| ×1 | 3n3 | 3.3n | read from the layout by eye | |
| ×1 | 22n | 22n | read from the layout by eye | |
| ×2 | 100n | 100n | read from the layout by eye | |
| ×2 | 1u | 1u | film (box); read from the layout by eye | |
| ×2 | 4u7 | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 2u2 | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 1u | 1u | electrolytic; read from the layout by eye | |
| ×2 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | 1N914 | 1N914 | read from the layout by eye | |
| D2 | 1N914 | 1N914 | read from the layout by eye | |
| D3 | 1N914 | 1N914 | read from the layout by eye | |
| D4 | 1N914 | 1N914 | read from the layout by eye | |
| Transistors 1 | ||||
| ×1 | PNP Silicon | PNP SILICON | legend: Transistor: PNP Silicon, type not given; read from the layout by eye | |
| ICs 2 | ||||
| ×2 | LM308N | LM308N | printed 308N; read from the layout by eye | |
| ×1 | 4558 | 4558 | read from the layout by eye | |
| Opto 1 | ||||
| ×1 | H11F3 | H11F3 | drawn upside down; read from the layout by eye | |
| Potentiometers 4 | ||||
| Level | B1M | B1M | Potentiometer | read from the layout by eye |
| Gain | B1M | B1M | Potentiometer | read from the layout by eye |
| Tone | C100K | C100k | Potentiometer | read from the layout by eye |
| Bite | B1K | B1k | Potentiometer | read from the layout by eye |
| Switches 2 | ||||
| Switch 1 | SPST | SPST | read from the layout by eye | |
| Switch 2 | SPST | SPST | read from the layout by eye | |
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