125B · 4 knobs
Wampler PinnacleVerified
Based on the Wampler Pinnacle· 7 other boards clone it
- Category
- Distortion
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Distortion, Wampler
From the post
Got another cascaded JFET design, this time from Wampler. Great for getting those EVH Brown Sound tones. I've added 2 trimmers for the 2 non-cascaded JFET stages to make biasing at little easier (originals use 22k resistors). Should be an easy fit in a 125B with top mounted jacks, but should also work in a 1590B with top mounted jacks (though you have to be really precise drilling those).
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 38 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
- Two of the three 1uF (rows D-G and I-K) are drawn as rounded boxes, taken as film; the third (row V) is a round can, electrolytic
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×1 | 10Ω | 10 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×4 | 1K | 1k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×2 | 82K | 82k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×6 | 1M | 1M | read from the layout by eye | |
| Capacitors 13 | ||||
| ×1 | 150pF | 150p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 470pF | 470p | read from the layout by eye | |
| ×2 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 6.8nF | 6.8n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×3 | 22nF | 22n | read from the layout by eye | |
| ×1 | 33nF | 33n | read from the layout by eye | |
| ×1 | 56nF | 56n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×2 | 1uF | 1u | read from the layout by eye | |
| ×1 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | J201 | J201 | JFET; read from the layout by eye | |
| Q2 | J201 | J201 | JFET; read from the layout by eye | |
| Q3 | J201 | J201 | JFET; read from the layout by eye | |
| Q4 | J201 | J201 | JFET; read from the layout by eye | |
| Q5 | J201 | J201 | JFET; read from the layout by eye | |
| Q6 | J201 | J201 | JFET; read from the layout by eye | |
| Potentiometers 4 | ||||
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Contour | C50K | C50k | Potentiometer | read from the layout by eye |
| Gain | A500K | A500k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×2 | 50K | 50k | read from the layout by eye | |
| Switches 2 | ||||
| SwA | DPDT | DPDT | Vintage/Modern; read from the layout by eye | |
| SwB | SPST | SPST | Bright; read from the layout by eye | |
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