Enclosure not stated · 5 knobs
Acorn Amplifiers MIGFET 50p PreampVerified
Based on the Acorn Amplifiers MIGFET 50p Preamp· 1 other board clones it
- Category
- Preamp / Amp-in-a-box
- Build
- Vero· 19×20· 25 cuts, 13 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Acorn Amplifiers, Amp Emulator, Pre Amp, Sovtek
From the post
A big thanks to Chris Stelloh for the schematic!
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 10 | ||||
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 2K | 2k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| Capacitors 10 | ||||
| ×2 | 33nF | 33n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 270pF | 270p | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×3 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 1N4007 | 1N4007 | read from the layout by eye | |
| D2 | 1N4007 | 1N4007 | read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Q2 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Q3 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Q4 | 2N3904 | 2N3904 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | 7660SCPAZ | 7660SCPAZ | read from the layout by eye | |
| Potentiometers 5 | ||||
| Volume | B50K | B50k | Potentiometer | read from the layout by eye |
| Treble | B250K | B250k | Potentiometer | read from the layout by eye |
| Mid | B250K | B250k | Potentiometer | read from the layout by eye |
| Bass | B250K | B250k | Potentiometer | read from the layout by eye |
| Master | B10K | B10k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×3 | 50K | 50k | read from the layout by eye | |
Other boards based on the Acorn Amplifiers MIGFET 50p Preamp
- Figment Preamp PedalPCB · 125B · $12.00