125B · 3 knobs
Trahald
Based on the Spaceman Effects Rumblefuzz II· 2 other boards clone it
From the vendor
New board version of the Spaceman Rumblefuzz II. Also updates our Gollum board. This version uses an NPN transistor back end to boost the final volume, while the Gollum uses a JFET at the tail end. Both are equally good, though we do find this version to be a bit dirtier flat out, and yet cleans up remarkably well just turning down the guitar volume. Can easily be left on all the time.
We're going to keep the Gollum as part of our inventory, since fuzz aficionados may prefer one over the other. Both are keepers!
Schematic
The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 34 rows
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ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| R1 | 1msch | 1M | ||
| R2 | 1K21sch | 1.21k | ||
| R3 | 3K9sch | 3.9k | ||
| R4 | 18ksch | 18k | ||
| R6 | 47Ksch | 47k | ||
| R7 | 470Ksch | 470k | ||
| R8 | 100Ksch | 100k | ||
| R10 | 3Ksch | 3k | ||
| R11 | 13K7sch | 13.7k | ||
| R12 | 1msch | 1M | ||
| R13 | 33Ksch | 33k | ||
| R9 | 47Kocr | 47k | ||
| R15 | 33Kocr | 33k | ||
| Capacitors 9 | ||||
| C1 | 220nsch | 220n | ||
| C2 | 47psch | 47p | ||
| C3 | 10usch | 10u | ||
| C6 | 100nsch | 100n | ||
| C7 | 100nsch | 100n | ||
| C8 | 22nsch | 22n | ||
| C4 | 10uocr | 10u | ||
| C5 | 47uocr | 47u | ||
| C9 | 22nocr | 22n | ||
| Diodes 4 | ||||
| D1 | 1N4148sch | 1N4148 | ||
| D3 | 1n4002sch | 1N4002 | ||
| D5 | BAT46sch | BAT46 | ||
| D4 | 1N4148ocr | 1N4148 | ||
| Transistors 3 | ||||
| Q4 | BS170sch | BS170 | ||
| Q5 | 2N3904sch | 2N3904 | ||
| Q6 | BS250fixed | BS250 | ||
| Potentiometers 3 | ||||
| Bite | C5Ksch | C5k | Potentiometer | |
| Fuzz | A50Ksch | A50k | Potentiometer | |
| RUMBLE | C100Kocr | C100k | Potentiometer | |
| Switches 2 | ||||
| Voice | DPDT ON-ONocr | DPDT ON-ON | ||
| Bypass | DPDTocr | DPDT | ||
Other boards based on the Spaceman Effects Rumblefuzz II
- Spaceman Effects Rumblefuzz II Dirtbox Layouts
- Yellow-Rumped Fuzz RWL Pedals · 125B