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Monolith Oracle FuzzVerified
Based on the Monolith Oracle Fuzz· 4 other boards clone it
From the post
A simple but heavy germanium fuzz using PNP transistors with normal power supply. What not to like? The original used fairly high gain OC76 cans but others with less gain will work as well. Just keep the leakage reasonable low when selecting the transistors. Two layout for this, one normal compact and one MOJO with 0,5w carbon comp resistors and axial electrolyctics.
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 21 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×1 | 470K | 470k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×1 | 12K | 12k | read from the layout by eye | |
| ×1 | 8.2K | 8.2k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 820Ω | 820 | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 6.8nF | 6.8n | read from the layout by eye | |
| ×1 | 56nF | 56n | read from the layout by eye | |
| ×1 | 1uF | 1u | film (box); read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | OC76 | OC76 | or other PNP Ge transistors; Hfe ~ 100; read from the layout by eye | |
| Q2 | OC76 | OC76 | or other PNP Ge transistors; Hfe ~ 300; read from the layout by eye | |
| Potentiometers 3 | ||||
| Density | B1M | B1M | Potentiometer | read from the layout by eye |
| Color | B250K | B250k | Potentiometer | read from the layout by eye |
| Output | A500K | A500k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Switch | DPDT on/on | DPDT ON/ON | toggle; read from the layout by eye | |
Other boards based on the Monolith Oracle Fuzz
- Monolith Oracle Fuzz Effects Layouts (blog)
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- Monolith Fuzz Oracle Tagboard Effects
- Monolith Oracle turretboard.org