1590BB2 · 6 knobs
NostalgiTone Call of Cthulhu PCB Set
- Category
- Utility
- Price
- $13.95in stock
From the vendor
The NostalgiTone Call of Cthulhu Dual Combo provides amazing Doom and Stoner tones. With added order switching it provides endless sonic possibilities for exploration.
Included with each Dual Combo purchase. – (2) Mainboards, (2) pin headers, (1) Dual wiring board.
Description
Introducing the NostalgiTone – Call of Cthulhu Dual Combo, a crushing Doom and Stoner–focused design built for players who want seismic low-end, saturated sustain, and apocalyptic riff power. This dual combo pairs two proven single circuits from the NostalgiTone lineup: the Doomstortion (inspired by the Rat) and the Harbinger Fuzz (inspired by the Big Muff Opamp), creating a massive tonal arsenal capable of everything from gritty doom dirt to thick, endlessly sustaining fuzz walls. A standout feature is the integrated order-switching, allowing you to place the circuits in either direction for dramatically different textures — from tight distortion feeding a wooly fuzz to huge fuzz tones pushing aggressive clipping in an instant.
Key Feature:
Built-in order switching for endless tonal possibilities, allowing reversal of the signal path using a “Stubby” or short bat switch.
PCB set only – Enclosure and components not included.
(Use a 3PDT On/On short shaft / stubby switch for order switching)
LDR Phaser sets are also available!
Designed for a 1590BB2 enclosure, featuring the same dimensions as a 1590BB but with 125B clearance.
Call of Cthulhu Build Document
1590BB2 size (Drilled for dual wiring board mounted LEDs) – Drilled Enclosure Link
Schematic
The schematic is in the vendor's build document, page 2. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 33 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| R1 | 1M | 1M | ||
| R9 | 1M | 1M | ||
| R2 | 1M | 1M | ||
| R10 | 10k | 10k | ||
| R3 | 1M | 1M | ||
| R26 | 1k | 1k | ||
| R4 | 10k | 10k | ||
| R5 | 4k7 | 4.7k | ||
| R6 | 100R | 100 | ||
| R7 | 1k | 1k | ||
| R8 | 1k5 | 1.5k | ||
| Capacitors 12 | ||||
| C5 | 470n | 470n | ||
| C6 | 330n | 330n | ||
| C7 | 220n | 220n | ||
| C8 | 3n3 | 3.3n | ||
| C1 | 22n | 22n | ||
| C9 | 220n | 220n | ||
| C2 | 1n | 1n | ||
| C10 | 220n | 220n | ||
| C3 | 22pF | 22p | ||
| C11 | 100uF | 100u | ||
| C4 | 100pF | 100p | ||
| C12 | 100n | 100n | ||
| Diodes 3 | ||||
| D1 | 1N914 | 1N914 | ||
| D2 | 1N914 | 1N914 | ||
| D5 | 1N5817 | 1N5817 | ||
| Transistors 1 | ||||
| Q1 | 2N5458 | 2N5458 | ||
| ICs 1 | ||||
| IC1 | OP07 | OP07 | ||
| Potentiometers 3 | ||||
| LEVEL | A100K | A100k | Potentiometer | |
| DIST | A500K | A500k | Potentiometer | |
| FILTER | A100K | A100k | Potentiometer | |
| LEDs 2 | ||||
| D3 | LED | LED | ||
| D4 | LED | LED | ||