Enclosure not stated · 6 knobs
ENGL 3 JFET/MosFET preamp emulator
- Category
- Preamp / Amp-in-a-box
- Price
- see vendorin stock
- Tags
- ENGL, PreAmp, MosFet
Schematic
The schematic image is on the project page. Open it at PCBWay.
Parts list 44 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 17 | ||||
| ×2 | 1M | 1M | read from the schematic by eye | |
| ×1 | 510k | 510k | read from the schematic by eye | |
| ×3 | 100k | 100k | read from the schematic by eye | |
| ×3 | 56k | 56k | read from the schematic by eye | |
| ×2 | 47k | 47k | read from the schematic by eye | |
| ×3 | 43k | 43k | read from the schematic by eye | |
| ×4 | 33k | 33k | read from the schematic by eye | |
| ×2 | 24k | 24k | bias divider; read from the schematic by eye | |
| ×2 | 22k | 22k | read from the schematic by eye | |
| ×1 | 20k | 20k | marked 20k* (select/optional); read from the schematic by eye | |
| ×1 | 10k | 10k | read from the schematic by eye | |
| ×1 | 4k7 | 4.7k | LED resistor; read from the schematic by eye | |
| ×1 | 2k2 | 2.2k | marked 2k2*, presence network (optional); read from the schematic by eye | |
| ×1 | 2k | 2k | supply filter; read from the schematic by eye | |
| ×1 | 1k5 | 1.5k | read from the schematic by eye | |
| ×1 | 1k | 1k | supply filter; read from the schematic by eye | |
| ×2 | 0 | 0 | drawn as a resistor labelled Jumper*; drawn as resistors labelled Jumper*: below the Drive pot and before the Treble wiper; fit a wire or a resistor; read from the schematic by eye | |
| Capacitors 17 | ||||
| ×4 | 100u | 100u | electrolytic; read from the schematic by eye | |
| ×1 | 22u | 22u | electrolytic; read from the schematic by eye | |
| ×2 | 2u2 | 2.2u | electrolytic; read from the schematic by eye | |
| ×1 | 470n | 470n | read from the schematic by eye | |
| ×1 | 220n | 220n | read from the schematic by eye | |
| ×1 | 100n | 100n | read from the schematic by eye | |
| ×1 | 47n | 47n | read from the schematic by eye | |
| ×1 | 33n | 33n | marked 33n*, presence network (optional); read from the schematic by eye | |
| ×2 | 22n | 22n | read from the schematic by eye | |
| ×1 | 10n | 10n | marked 10n*, supply; read from the schematic by eye | |
| ×2 | 4n7 | 4.7n | read from the schematic by eye | |
| ×1 | 3n3 | 3.3n | read from the schematic by eye | |
| ×1 | 2n2 | 2.2n | read from the schematic by eye | |
| ×1 | 1n | 1n | marked 1n*, across the Drive pot; read from the schematic by eye | |
| ×3 | 470p | 470p | read from the schematic by eye | |
| ×1 | 220p | 220p | read from the schematic by eye | |
| ×1 | 100p | 100p | read from the schematic by eye | |
| Diodes 2 | ||||
| ×3 | 1N4148 | 1N4148 | read from the schematic by eye | |
| ×1 | 1N4001 | 1N4001 | read from the schematic by eye | |
| Transistors 2 | ||||
| ×3 | J201 | J201 | read from the schematic by eye | |
| ×3 | 2N7000 | 2N7000 | read from the schematic by eye | |
| Potentiometers 6 | ||||
| Drive | A100k | A100k | Potentiometer | read from the schematic by eye |
| Treble | B200k | B200k | Potentiometer | read from the schematic by eye |
| Bass | B1M | B1M | Potentiometer | read from the schematic by eye |
| Mid | A20k | A20k | Potentiometer | read from the schematic by eye |
| Presence | B10k | B10k | Potentiometer | marked Presence* (optional); read from the schematic by eye |
| Volume | B1M | B1M | Potentiometer | read from the schematic by eye |