Enclosure not stated · 4 knobs
Catalinbread Karma SutureVerified
Based on the Catalinbread Karma Suture· 6 other boards clone it
From the post
Catalinbread has released two versions of the Karma Suture, one germanium and one silicon based. Both at their hearts are simply a modified Harmonic Percolator. I think Catalinbread described it best on their site:
A bubbling cauldron of even-order harmonics! The only change I made in the layout from the schematic is I added a 100uF cap from power to ground to assist in power filtering. Schematic can be found here. Enjoy my fellow fuzzheads.
Catalinbread Karma Suture (Ge)
Catalinbread Karma Suture (Si)
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 24 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| ×1 | 91k | 91k | read from the layout by eye | |
| ×1 | 33k | 33k | read from the layout by eye | |
| ×1 | 750k | 750k | read from the layout by eye | |
| ×1 | 220k | 220k | read from the layout by eye | |
| ×1 | 4.7k | 4.7k | read from the layout by eye | |
| Capacitors 10 | ||||
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 330pF | 330p | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 1N4001 | 1N4001 | read from the layout by eye | |
| D2 | 1N914 | 1N914 | read from the layout by eye | |
| D3 | Germanium | GERMANIUM | type not specified; read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 1T308A | 1T308A | germanium; legend: low gain, low leakage; read from the layout by eye | |
| Q2 | 2N2222A | 2N2222A | read from the layout by eye | |
| Potentiometers 4 | ||||
| Input | B100K | B100k | Potentiometer | read from the layout by eye |
| Density | C500K | C500k | Potentiometer | read from the layout by eye |
| Diodes | B50K | B50k | Potentiometer | read from the layout by eye |
| Output | A100K | A100k | Potentiometer | read from the layout by eye |
Other boards based on the Catalinbread Karma Suture
- Catalinbread Karma Suture Effects Layouts (blog)
- Kismet Stitch - 4-knob Harmonic Percolator Fuzz Dog · 1590B · £43.20
- Karma Sutra PCB Guitar Mania · 125B · €9.90
- Karma Suture PCBWay: Glory to Ukraine
- Antithesis Fuzz PedalPCB · 125B · $8.00
- Spunkomatic Sheepylove · €10.00