Enclosure not stated · 1 knob
Boss GEB-7 EqualizerVerified
Based on the Boss GEB-7 Bass Equalizer· 1 other board clones it
- Category
- EQ / Filter
- Controls
- Level
- Build
- Vero· 23×26· 50 cuts, 25 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Boss, Eq
From the post
Per request.
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 46 rows
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Check before you build · 2 values the reader of this layout was not sure of
- 1,5uF at G7 (below IC5): drawn as a semi-transparent round can without the polarity stripe; read as 1.5uF, printed clearly, unusual value, may be non-polarised
- 82nF at D-F col 4 and 3,9nF at Q-R col 22: printed clearly, slightly unusual values
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×6 | 330Ω | 330 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 560Ω | 560 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×2 | 3.3K | 3.3k | read from the layout by eye | |
| ×3 | 4.7K | 4.7k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×3 | 82K | 82k | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| Capacitors 19 | ||||
| ×1 | 10pF | 10p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 3.9nF | 3.9n | read from the layout by eye | |
| ×1 | 12nF | 12n | read from the layout by eye | |
| ×2 | 15nF | 15n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×2 | 68nF | 68n | read from the layout by eye | |
| ×1 | 82nF | 82n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 150nF | 150n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 1.5uF | 1.5u | electrolytic; read from the layout by eye | |
| ×1 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 5 | ||||
| IC1 | TL072 | TL072 | dual op amp; Try TL072, 5532, 4580 etc.; read from the layout by eye | |
| IC2 | TL072 | TL072 | dual op amp; Try TL072, 5532, 4580 etc.; read from the layout by eye | |
| IC3 | TL072 | TL072 | dual op amp; Try TL072, 5532, 4580 etc.; read from the layout by eye | |
| IC4 | TL072 | TL072 | dual op amp; Try TL072, 5532, 4580 etc.; read from the layout by eye | |
| IC5 | TL072 | TL072 | dual op amp; Try TL072, 5532, 4580 etc.; read from the layout by eye | |
| Potentiometers 8 | ||||
| 62 Hz | B10K | B10k | Potentiometer | read from the layout by eye |
| 125 Hz | B10K | B10k | Potentiometer | read from the layout by eye |
| 250 Hz | B10K | B10k | Potentiometer | read from the layout by eye |
| 500 Hz | B10K | B10k | Potentiometer | read from the layout by eye |
| 1kHz | B10K | B10k | Potentiometer | read from the layout by eye |
| 2 kHz | B10K | B10k | Potentiometer | read from the layout by eye |
| 4 kHz | B10K | B10k | Potentiometer | read from the layout by eye |
| Level | B10K | B10k | Potentiometer | read from the layout by eye |
Other boards based on the Boss GEB-7 Bass Equalizer
- GE7b Bass Equalizer Guitar-Electronics.eu · €6.25