Enclosure not stated · 2 knobs
Orpheum FuzzVerified
Based on the Orpheum Fuzz· 2 other boards clone it
From the post
How come i can never seem to find any good info about these circuits :|
Anyway. Here's another 60's "classic". Ugly and mean. Simple, yet effective. Added both versions; Silicon and Germanium.
Please take note that the Ge version is positive ground with PNP germanium transistors, while the Si version is NPN with negative ground.
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 11 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
- 5nF x2 (centre of board): printed clearly, unusual value
- 10M below Q1: the top of the resistor is hidden under the transistor, reads 10M
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×2 | 47K | 47k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 10M | 10M | read from the layout by eye | |
| Capacitors 3 | ||||
| ×2 | 5nF | 5n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 15uF | 15u | electrolytic; read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | AC128 | AC128 | unknown Ge PNP (try AC128); read from the layout by eye | |
| Q2 | AC128 | AC128 | unknown Ge PNP (try AC128); read from the layout by eye | |
| Potentiometers 2 | ||||
| Tone | B200K | B200k | Potentiometer | guess from the schematic; 100K log reported; read from the layout by eye |
| Volume | B250K | B250k | Potentiometer | guess from the schematic; 1M lin reported; read from the layout by eye |
Other boards based on the Orpheum Fuzz
- Orpheum Fuzz Effects Layouts (blog)
- Orphan Fuzz Jon Patton · $10.90