125B · 4 knobs
Prescription Electronics Depth Charge
Based on the Prescription Electronics Depth Charge· 2 other boards clone it
From the post
Here's a sweet bass fuzz based on the Univox Super Fuzz for Fuzz Friday. Original units used 2N3707 transistors with BCE pinout, which I'm guessing most people don't have in their parts stash. So I laid it out for CBE transistors (2N5088s or BC549Cs should work just fine) and it will fit nicely in a 125B with top mounted jacks and the pots in the same orientation/positioning as the original. Schematic available over on FSB.
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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 30 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| ×2 | 470Ω | 470 | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×7 | 10K | 10k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×3 | 22K | 22k | read from the layout by eye | |
| ×3 | 47K | 47k | read from the layout by eye | |
| ×7 | 100K | 100k | read from the layout by eye | |
| ×1 | 120K | 120k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 5 | ||||
| ×2 | 1nF | 1n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×2 | 220nF | 220n | read from the layout by eye | |
| ×9 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| D1 | 2N270 | 2N270 | 2N270 or similar; read from the layout by eye | |
| D2 | 2N270 | 2N270 | 2N270 or similar; read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | 2N5088 | 2N5088 | 2N5088 or similar; read from the layout by eye | |
| Q2 | 2N5088 | 2N5088 | 2N5088 or similar; read from the layout by eye | |
| Q3 | 2N5088 | 2N5088 | 2N5088 or similar; read from the layout by eye | |
| Q4 | 2N5088 | 2N5088 | 2N5088 or similar; read from the layout by eye | |
| Q5 | 2N5088 | 2N5088 | 2N5088 or similar; read from the layout by eye | |
| Q6 | 2N5088 | 2N5088 | 2N5088 or similar; read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | B50K | B50k | Potentiometer | read from the layout by eye |
| Blend | 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 |
Other boards based on the Prescription Electronics Depth Charge
- Prescription Electronics Depth Charge Dirtbox Layouts
- Deep End Fuzz PedalPCB · 125B · $12.00