Enclosure not stated · 4 knobs
Frost Giant Electronics SomaVerified
Based on the Frost Giant Electronics Soma
From the post
Traced and verified by evilarsen. Thanks buddy! Not that the part numbers for Q1 and Q2 isn't fully confirmed but it is most likely BC547/8/9 types with B suffix for Q1 and C suffix for Q2.
Product description: Soma is a tuned version of our Massif Fuzz with the tonestack of the Doom/Sludge Metal giant The Tall Font Russian.
The Massif’s circuit was adjusted with more gain and cut but still retains the open mid response to keep you above the mix. An added bonus is we added a trimpot on the inside to adjust the bias if you decide you want a sputtery hellacious fuzz, stock it’s set for maximum sustain and gain.
Controls:
Volume – Adjusts the level output
Tone – The feel of your standard BMP tone control
Body – Shifts the low/mid low range in conjunction with the Tone knob
Fuzz – Adjusts the Fuzz level *internal trimpot – Bias adjustment
Heavy and Saturated :: Thick and Fuzzy
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 28 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×1 | 18K | 18k | read from the layout by eye | |
| ×1 | 120K | 120k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 820Ω | 820 | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 2.7K | 2.7k | read from the layout by eye | |
| Capacitors 9 | ||||
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 3.9nF | 3.9n | read from the layout by eye | |
| ×1 | 470pF | 470p | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | BC54xB | BC54XB | read from the layout by eye | |
| Q2 | BC54xC | BC54XC | read from the layout by eye | |
| Q3 | 2N5089 | 2N5089 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Fuzz | C1K | C1k | Potentiometer | read from the layout by eye |
| Body | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 10K | 10k | read from the layout by eye | |