Enclosure not stated · 4 knobs
Exar TB-04 Tuber
Based on the Exar TB-04 Tuber
- Category
- Distortion
- Build
- Vero· 19×17· 22 cuts, 8 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Distortion, Exar
From the post
Schematic is avaiable HERE.
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 31 rows
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Check before you build · 3 values the reader of this layout was not sure of
- 105K (col 5, rows E-H): printed clearly, unusual value
- D3: legend prints 'D1: 1N5817' after 'D1-D2: 1N4148'; taken as D3, the black diode by the 9v strip
- Q1 original part: legend prints '2SG30-GR in original', probably 2SK30-GR
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×8 | 10K | 10k | read from the layout by eye | |
| ×3 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 2.7K | 2.7k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 105K | 105k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| Capacitors 10 | ||||
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×2 | 470pF | 470p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 6.8nF | 6.8n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×2 | 68nF | 68n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×4 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 1N4148 | 1N4148 | read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | legend calls it D1; read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N5457 | 2N5457 | JFET; 2N5457, J201, J113 (2SG30-GR in original); read from the layout by eye | |
| Q2 | BC550B | BC550B | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | RC4558 | RC4558 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Dist | A220K | A220k | Potentiometer | read from the layout by eye |
| High | B10K | B10k | Potentiometer | read from the layout by eye |
| Low | A50K | A50k | Potentiometer | read from the layout by eye |
| Level | B50K | B50k | Potentiometer | read from the layout by eye |