Enclosure not stated · 4 knobs
Fulltone CatalystVerified
Based on the Fulltone Catalyst· 4 other boards clone it
From the post
Verified by Schmidtse
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 29 rows
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Check before you build · 9 values the reader of this layout was not sure of
- 30nF film cap, columns 8, rows B-E: printed clearly, unusual value (could be a clipped 330nF)
- 20nF film cap, column 10, rows H-J: printed clearly, unusual value (could be a clipped 220nF)
- 22nF round can, column 10 rows B-C: text reads '22n' clipped by the can; drawn like an electrolytic, could be 22uF
- 4.7uF can at the left edge rows D-E: only '.7uF' visible
- 2.2uF can at column 13 rows J-K: only '.2uF' visible
- 2.2uF can at column 7 rows K-L: only '2uF' visible, could be 22uF
- 1uF can at column 13 rows E-F: leading characters may be clipped
- 100uF can at column 6 rows A-B: only '00uF' visible
- 1K pale resistor at column 3 rows F-I: drawn semi-transparent, text partly hidden
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×3 | 10K | 10k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×1 | 120K | 120k | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×1 | 12K | 12k | read from the layout by eye | |
| ×1 | 2.7K | 2.7k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 2K | 2k | read from the layout by eye | |
| ×1 | 1K | 1k | drawn pale; read from the layout by eye | |
| Capacitors 9 | ||||
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 30nF | 30n | read from the layout by eye | |
| ×1 | 20nF | 20n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 22nF | 22n | drawn as a round can; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×2 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 1uF | 1u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | 9.1V Zener | 9V1 | read from the layout by eye | |
| D2 | 1N5817 | 1N5817 | 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 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | C10K | C10k | Potentiometer | read from the layout by eye |
| Treble | B100K | B100k | Potentiometer | read from the layout by eye |
| Bass/Mids | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Switch | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |
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