1590A · 2 knobs
Dunlop Fuzz Face - Eric JohnsonVerified
Based on the Dallas Arbiter Fuzz Face· 62 other boards clone it
From the post
Here's a layout for the Eric Johnson Fuzz Face. Had someone ask if they could build it on the basic Fuzz Face layout from last year. Since there's a few extra components in the EJ version, I thought I'd make a specific layout for it. Should still fit in a 1590a though. Q1 is a BC183 (hfe ~250), and Q2 is a BC183C (hfe ~650). Use the trimmer to bias Q2 to 3v.
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 17 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
- 6K resistor left of the 330Ω: printed clearly, unusual value
- 15uF electrolytic in the middle: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×1 | 6K | 6k | read from the layout by eye | |
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×1 | 27Ω | 27 | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 120K | 120k | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 27pF | 27p | read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 15uF | 15u | electrolytic; read from the layout by eye | |
| ×1 | 1uF | 1u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | BC183 | BC183 | read from the layout by eye | |
| Q2 | BC183 | BC183 | read from the layout by eye | |
| Potentiometers 2 | ||||
| Volume | C500K | C500k | Potentiometer | read from the layout by eye |
| Fuzz | B1K | B1k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 5K | 5k | read from the layout by eye | |
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