Enclosure not stated · 3 knobs
Crazy Tube Circuits Ziggy OverdriveVerified
Based on the Crazy Tube Circuits Ziggy Overdrive· 1 other board clones it
From the post
Here's a cool MOSFET-based overdrive from Crazy Tube Circuits. Apparently it's based on a Neve console input channel stacked 3 times. With the gain down it sounds a bit like an AC30, and with it cranked it sounds like a Plexi. It was traced over on FSB (link here) and I've laid it out for board mounted pots. If you're interested in a fabricated board, check out the Starman in the store.
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 33 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| ×7 | 1M | 1M | read from the layout by eye | |
| ×2 | 15K | 15k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 240Ω | 240 | read from the layout by eye | |
| ×2 | 47Ω | 47 | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 33Ω | 33 | read from the layout by eye | |
| Capacitors 11 | ||||
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×1 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 680pF | 680p | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 9.1V zener | 9V1 | read from the layout by eye | |
| D2 | 9.1V zener | 9V1 | read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| Q2 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| Q3 | BS170 | BS170 | MOSFET; read from the layout by eye | |
| Potentiometers 3 | ||||
| Drive | A500K | A500k | Potentiometer | wires labelled Gain; read from the layout by eye |
| Tone | A100K | A100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| More | DPDT on/on | DPDT ON/ON | read from the layout by eye | |
Other boards based on the Crazy Tube Circuits Ziggy Overdrive
- Crazy Tube Circuits Ziggy Tagboard Effects