Enclosure not stated · 3 knobs
Barber Tone PumpVerified
Based on the Barber Tone Pump· 1 other board clones it
From the post
Starting the week out with an early version of the Tone Pump from Barber. It's very similar to the Silver LTD with a few value changes and a simplified tone control. Here's the schematic for reference and you can use the Barber Silver LTD drilling template. I believe if you put two of these in one box you get the two channel version.
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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 28 rows
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Check before you build · 2 values the reader of this layout was not sure of
- 47nF at col 4-5/row R bottom left is drawn as a round can like an electrolytic but printed 47nF (same on the wiring diagram); could be meant as 47uF
- 20nF (two, at col 3/N-P and col 11/L-O): printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×3 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 3K | 3k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 3.6K | 3.6k | read from the layout by eye | |
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×1 | 91Ω | 91 | read from the layout by eye | |
| Capacitors 10 | ||||
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×2 | 20nF | 20n | read from the layout by eye | |
| ×1 | 82nF | 82n | 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 | 100pF | 100p | read from the layout by eye | |
| ×1 | 47nF | 47n | drawn as a round can; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×4 | 1N4148 | 1N4148 | read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| ICs 1 | ||||
| ×1 | 4558 | 4558 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Drive | A1M | A1M | Potentiometer | read from the layout by eye |
| Tone | B50K | B50k | Potentiometer | read from the layout by eye |
| Volume | A50K | A50k | Potentiometer | read from the layout by eye |
| Trimmers 3 | ||||
| PRES | 10K | 10k | read from the layout by eye | |
| BASS | 50K | 50k | read from the layout by eye | |
| MIDS | 25K | 25k | read from the layout by eye | |
Other boards based on the Barber Tone Pump
- Barber Tone Pump Tagboard Effects