Enclosure not stated · 5 knobs
Dunwich Amplification Apostle (DIY version)
Based on the Dunwich Amplification Apostle (DIY version)
- Category
- Preamp / Amp-in-a-box
- Build
- Vero· 24×30· 50 cuts, 22 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Amp Emulator, Distortion, Dunwich Amplification, Matamp, Overdrive
From the post
Schematic and BOM avaiable at OSH Park. Looks like a very interesting Matamp/Orange amp emulator running mostly at almost 36v with an active speaker simulator(?) and a "Mode" switch for two tonestacks. Each being at different locations in the circuit.
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 36 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×10 | 100K | 100k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×3 | 15K | 15k | read from the layout by eye | |
| ×2 | 27K | 27k | read from the layout by eye | |
| ×2 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 10M | 10M | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| Capacitors 13 | ||||
| ×2 | 33pF | 33p | read from the layout by eye | |
| ×4 | 100pF | 100p | read from the layout by eye | |
| ×2 | 330pF | 330p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×6 | 2.2nF | 2.2n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×1 | 1uF | 1u | film; read from the layout by eye | |
| ×1 | 10uF | 10u | BP: bipolar electrolytic/film/MLC cap; read from the layout by eye | |
| ×4 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×3 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×4 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×7 | 1N5817 | 1N5817 | D1-D7; read from the layout by eye | |
| Transistors 1 | ||||
| ×4 | 2N5457 | 2N5457 | JFET, Q1-Q4; read from the layout by eye | |
| ICs 2 | ||||
| IC1 | TL072 | TL072 | read from the layout by eye | |
| IC2 | LT1054 | LT1054 | read from the layout by eye | |
| Potentiometers 5 | ||||
| Treble | A1M | A1M | Potentiometer | dual; read from the layout by eye |
| Bass | A1M | A1M | Potentiometer | dual; read from the layout by eye |
| Boost | C5K | C5k | Potentiometer | read from the layout by eye |
| Gain | A1M | A1M | Potentiometer | read from the layout by eye |
| Volume | A1M | A1M | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×4 | 100K | 100k | one beside each JFET; read from the layout by eye | |
| Switches 2 | ||||
| FAC | SPST | SPST | read from the layout by eye | |
| Mode | DPDT on/on | DPDT ON/ON | read from the layout by eye | |