Enclosure not stated · 2 knobs
Hornby Skewes Zonk Machine Mk IVerified
Based on the Hornby Skewes Zonk Machine Mk I· 3 other boards clone it
From the post
with bias trimpot
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 19 rows
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Check before you build · 1 value the reader of this layout was not sure of
- Q1 part number: legend prints 'A02650' (second character looks like a zero, could be the letter O); not a familiar type, kept as printed
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| Capacitors 4 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | A02650 | A02650 | PNP germanium; read from the layout by eye | |
| Q2 | OC75 | OC75 | PNP germanium; read from the layout by eye | |
| Q3 | OC44 | OC44 | PNP germanium; read from the layout by eye | |
| Potentiometers 2 | ||||
| Fuzz | A50K | A50k | Potentiometer | read from the layout by eye |
| Swell | A500K | A500k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 10K | 10k | read from the layout by eye | |
Other boards based on the Hornby Skewes Zonk Machine Mk I
- Hornby Skewes Zonk Machine Mk. I Si/Ge Hybrid Dirtbox Layouts
- Zonky Five Cats Pedals · 1590B · £4.50
- Hornby Skewes Zonk Machine I Tagboard Effects