1590B · 4 knobs
Moosapotamus 360 FuzzVerified
Based on the Acoustic 360 Fuzz· 3 other boards clone it
From the post
Here's a bass fuzz designed by Charlie Barth from Moosapotamus.net based on the fuzz section of the classic Acoustic 360 bass preamp. It uses a mix of silicon and germanium transistors. I've made the layout to reflect the combination of transistors specified in Charlie's schematic, but socket and experiment. This layout should fit in a 1590B, but if you want to use a larger enclosure, there's a PCB of this effect for sale here with board-mounted pots.
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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 32 rows
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Check before you build · 3 values the reader of this layout was not sure of
- Q3 (top centre, metal can): the legend prints '12N1306'; entered as 2N1306 (germanium NPN)
- 2.5nF (top left, under the 22K): printed clearly, unusual value
- 430K (bottom centre): printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| ×4 | 10K | 10k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×2 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 150Ω | 150 | read from the layout by eye | |
| ×1 | 680K | 680k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 6.8K | 6.8k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 390Ω | 390 | read from the layout by eye | |
| ×1 | 43K | 43k | read from the layout by eye | |
| ×1 | 430K | 430k | read from the layout by eye | |
| Capacitors 9 | ||||
| ×6 | 100nF | 100n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 2.5nF | 2.5n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 150pF | 150p | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×2 | 3.3uF | 3.3u | electrolytic; read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | BC550 | BC550 | read from the layout by eye | |
| Q2 | 2N5210 | 2N5210 | read from the layout by eye | |
| Q3 | 2N1306 | 2N1306 | as printed in the legend; likely 2N1306; printed '12N1306' on the drawing; read from the layout by eye | |
| Q4 | 2N5210 | 2N5210 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Clean | A100K | A100k | Potentiometer | read from the layout by eye |
| Decay | A10K | A10k | Potentiometer | read from the layout by eye |
| Attack | A500K | A500k | Potentiometer | read from the layout by eye |
| Fuzz | B500K | B500k | Potentiometer | read from the layout by eye |
Other boards based on the Acoustic 360 Fuzz
- 360 Fuzz Aion FX · 125B · $12.50
- Moosapotamus Acoustic 360 Bass Fuzz Dirtbox Layouts
- Moosapotamus Acoustic 360 Bass Fuzz Tagboard Effects