Enclosure not stated · 4 knobs
Catalinbread SFTVerified
Based on the Catalinbread SFT· 4 other boards clone it
From the post
Here's a really versatile overdrive from Catalinbread. The SFT is based on Ampeg amps from the 70s, using JFETs to simulate tubes (like many of Catalinbread's other overdrives). The Stones/Stoner switch allows you to go from verge of breakup tones to near fuzz tones with the flip of a switch. This can be run off 18 volts and this gives extra headroom, so it may not be a bad idea to include a charge pump in your build. This layout reflects the newest version of the SFT, and the schematic can be found here.
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 34 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×7 | 1M | 1M | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×3 | 100K | 100k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×1 | 120K | 120k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 1.8K | 1.8k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| Capacitors 11 | ||||
| ×5 | 4.7nF | 4.7n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 680pF | 680p | read from the layout by eye | |
| ×1 | 150pF | 150p | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 470uF | 470u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | MPF4393 | MPF4393 | JFET; read from the layout by eye | |
| Q2 | MPF4393 | MPF4393 | JFET; read from the layout by eye | |
| Q3 | MPF4393 | MPF4393 | JFET; read from the layout by eye | |
| Q4 | MPF4393 | MPF4393 | JFET; read from the layout by eye | |
| Q5 | MPF4393 | MPF4393 | JFET; read from the layout by eye | |
| Q6 | MPF4393 | MPF4393 | JFET; read from the layout by eye | |
| Potentiometers 4 | ||||
| Bass | A1M | A1M | Potentiometer | read from the layout by eye |
| Treble | A1M | A1M | Potentiometer | read from the layout by eye |
| Gain | A1M | A1M | Potentiometer | read from the layout by eye |
| Volume | A250K | A250k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Switch | DPDT on/on | DPDT ON/ON | read from the layout by eye | |
Other boards based on the Catalinbread SFT
- Stoner NFT PCB Guitar Mania · 125B · €11.90
- SFT PCBWay: Glory to Ukraine
- SOFTii Overdrive PedalPCB · 125B · $10.00
- Catalinbread SFT Tagboard Effects