Enclosure not stated · 2 knobs
Hornby Skewes ShatterboxVerified
Based on the Hornby Skewes Shatterbox· 2 other boards clone it
From the post
Slightly modernized and improved. The original ran on negative power supply with low gain jellybean PNP silicon transistors with BCE pinout. This layout calls for low gain NPN silicon transistors with CBE pinots so you can easily socket the normal suspects like PN2222, 2N3903 etc. And a trimpot for the biasing the fuzz section replaces a fixed 10k resistor since original Skatterboxes was quite infamous for sounding misbiased in a bad way. And there is a spot for an optional smoothing cap across the base and colllector if the sonic character is too harch to some ears. So what is this thing? Basically an early example of a multieffect. A silicon Zonk Mk.2 into a silicon treble booster.
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 25 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 80uF electrolytic at columns 7-9, rows C-D: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×1 | 62K | 62k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 680K | 680k | read from the layout by eye | |
| ×1 | 270K | 270k | read from the layout by eye | |
| Capacitors 8 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 80uF | 80u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | 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 | |
| C8 | ? | ? | value not given; legend: Optional, Try 47pF-470pF; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | PN2222 | PN2222 | legend: PN2222, MPSA06, 2N4401, 2N3903 etc. (2N4061 PNP silicon original); read from the layout by eye | |
| Q2 | PN2222 | PN2222 | legend: PN2222, MPSA06, 2N4401, 2N3903 etc. (2N4061 PNP silicon original); read from the layout by eye | |
| Q3 | PN2222 | PN2222 | legend: PN2222, MPSA06, 2N4401, 2N3903 etc. (2N4061 PNP silicon original); read from the layout by eye | |
| Potentiometers 2 | ||||
| Fuzz | B5K | B5k | Potentiometer | read from the layout by eye |
| Swell | B500K | B500k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 10K | 10k | bias trimmer; read from the layout by eye | |
| Switches 1 | ||||
| Boost | 3PDT | 3PDT | footswitch; read from the layout by eye | |
Other boards based on the Hornby Skewes Shatterbox
- Hornby Skewes Shatterbox Effects Layouts (blog) · 1590B
- Hornby Skewes Shatterbox Tagboard Effects