Enclosure not stated · 2 knobs
Vox/Guyatone Zoom Distortion BoxVerified
Based on the Vox Guyatone Zoom Distortion Box
- Category
- Distortion
- Controls
- Distortion · Output
- Build
- Vero· 12×10· 7 cuts, 2 links
- Layout
- Verified · Tagboard Effects marks it as built and working
- Tags
- Distortion, Guyatone, Vox
From the post
This design is pretty close to OD250/Dist+, but i thought it should be added anyway, as there are some slight differences. Funny thing is that the same circuit was marketed and sold as both Vox Distortion and Guyatone Zoom Distortion Box. From what i can tell from the demo, it's really nice sounding thing. These both also seem to be pretty rare items with hefty price tags - if you can find one.
In my experience with 250 and Dist+, the pots may give better control with linear instead of original log taper.
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 14 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this layout was not sure of
- D1/D2: legend says 'Ge SG9150 (try 1N270, 1N34A)'; entered the first suggested substitute 1N270, the original part is SG9150
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×4 | 1M | 1M | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 12K | 12k | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 56nF | 56n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 500pF | 500p | read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | 1N270 | 1N270 | Ge SG9150 (try 1N270, 1N34A); read from the layout by eye | |
| D2 | 1N270 | 1N270 | Ge SG9150 (try 1N270, 1N34A); printed D1 on the board; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | LM741 | LM741 | read from the layout by eye | |
| Potentiometers 2 | ||||
| Distortion | A500K | A500k | Potentiometer | read from the layout by eye |
| Output | A50K | A50k | Potentiometer | read from the layout by eye |