1590B · 4 knobs
Catalinbread Sabbra CadabraVerified
Based on the Catalinbread Sabbra Cadabra· 9 other boards clone it
- Category
- Distortion
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Catalinbread, Distortion, Overdrive
From the post
This pedal is inspired by Tommi Iommi's classic combination of Laney Supergroup amps and a Rangemaster treble booster. It's not an emulator like the Supergroup pedal I posted a little while ago. If you look at the schematic it actually looks like 2, AMZ mini booster-type stages at its heart, with a transistor-based input stage. It also has a fixed tone array before what I'm guessing is a JFET-based gain recovery stage at the output. The originals have MPF4393 JFETs, but socket and try others with GSD pinout (J201, 2N5457, etc). The layout below says to use 9v, but it can also be run at 18v. I've drawn it so you can use right angle PCB pots, mounted from the solder-side of the board if you want, and it should all fit nicely in a 1590B.
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 37 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 18 | ||||
| ×5 | 1M | 1M | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×2 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×2 | 33K | 33k | 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 | 68K | 68k | read from the layout by eye | |
| ×1 | 47Ω | 47 | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×1 | 750K | 750k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 820Ω | 820 | read from the layout by eye | |
| Capacitors 12 | ||||
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×2 | 47pF | 47p | read from the layout by eye | |
| ×1 | 270pF | 270p | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×4 | 22nF | 22n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×3 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | BC184 | BC184 | read from the layout by eye | |
| ×5 | MPF4393 | MPF4393 | JFET, Q2-6; read from the layout by eye | |
| Potentiometers 4 | ||||
| Range | C500K | C500k | Potentiometer | read from the layout by eye |
| Gain | A1M | A1M | Potentiometer | read from the layout by eye |
| Presence | B10K | B10k | Potentiometer | read from the layout by eye |
| Volume | B250K | B250k | Potentiometer | read from the layout by eye |
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