Enclosure not stated · 5 knobs
Framus Cobra Pre Amp Lead ChannelVerified
Based on the Framus Cobra Pre Amp Lead Channel
- Category
- Preamp / Amp-in-a-box
- Build
- Vero· 21×24· 28 cuts, 11 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Amp Emulator, Distortion, Framus, Pre Amp
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 34 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×3 | 10K | 10k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×3 | 470K | 470k | read from the layout by eye | |
| ×2 | 330K | 330k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×4 | 1M | 1M | read from the layout by eye | |
| ×3 | 1.8K | 1.8k | read from the layout by eye | |
| ×1 | 560K | 560k | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| ×2 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 22Ω | 22 | read from the layout by eye | |
| Capacitors 11 | ||||
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×4 | 1nF | 1n | read from the layout by eye | |
| ×2 | 2.2nF | 2.2n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 3.3uF | 3.3u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 5 | ||||
| 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 | |
| Potentiometers 5 | ||||
| Gain | A250K | A250k | Potentiometer | read from the layout by eye |
| Mid | B100K | B100k | Potentiometer | read from the layout by eye |
| High | B1M | B1M | Potentiometer | read from the layout by eye |
| Low | B1M | B1M | Potentiometer | read from the layout by eye |
| Volume | B1M | B1M | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×4 | 50K | 50k | read from the layout by eye | |