1590BB · 7 knobs
Fuzz Phase
Based on the Vintage Soviet schematics,
- Category
- Phaser· Vintage germanium fuzz
- Controls
- Depth · Gain · High · Level · Low · Rate · Bias
- Difficulty
- Advanced
- Price
- €11.90out of stock
Heads up Builders widely report inconsistent quality from PCB Guitar Mania boards, and whether a given board works is a gamble. Read recent forum reports before ordering.
From the vendor
Project overview
This circuit’s origins are different Soviet electronics magazines and books from behind the iron curtain redesigned and renewed by the PCB Guitar Mania team into a unique vintage germanium fuzz with EQ and gentle phasing vibrato effect.
Introduction
Whether you’re a fan of vintage fuzz pedals or looking to add a distinctive flavor of fuzz to your collection, this exclusive design from PCB Guitar Mania is sure to please.
This unique germanium fuzz is based on different schematics from the Soviet era that we crystallized into one circuit and readapted to modern times while maintaining the original flavor of the early soviet phasers. The result is a truly unique pedal that offers a great vintage fuzz sound with EQ and a smooth phasing vibrato effect.
These types of projects take a lot of rework and experimentation until we reach the final result. If you are interested in similar projects, I recommend you to take a look at our Bulgarian Fuzz.
Controls
Potentiometers
• DEPTH
• GAIN
• HIGH
• LEVEL
• LOW
• RATE
For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.
Fuzz Phase – Building Docs
Fuzz Phase – Drilling template
Schematic
The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 80 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 41 | ||||
| R33 | 3k | 3k | ||
| R34 | 24k | 24k | ||
| R1 | 1m | 1M | ||
| R35 | 220R | 220 | ||
| R2 | 3k3 | 3.3k | ||
| R36 | 330k | 330k | ||
| R3 | 18k | 18k | ||
| R37 | 5k6 | 5.6k | ||
| R4 | 11k | 11k | ||
| R38 | 330R | 330 | ||
| R5 | 330R | 330 | ||
| R39 | 910R | 910 | ||
| R6 | 47k | 47k | ||
| R40 | 6k8 | 6.8k | ||
| R7 | 10k | 10k | ||
| R41 | 6k8 | 6.8k | ||
| R8 | 6k2 | 6.2k | ||
| R9 | 200R | 200 | ||
| R10 | 62k | 62k | ||
| R11 | 4k7 | 4.7k | ||
| R12 | 100R | 100 | ||
| R13 | 3k3 | 3.3k | ||
| R14 | 330R | 330 | ||
| R15 | 51k | 51k | ||
| R16 | 1M | 1M | ||
| R17 | 180k | 180k | ||
| R18 | 24k | 24k | ||
| R19 | 51k | 51k | ||
| R20 | 51k | 51k | ||
| R21 | 560R | 560 | ||
| R22 | 560R | 560 | ||
| R23 | 4k7 | 4.7k | ||
| R24 | 3M | 3M | ||
| R25 | 15k | 15k | ||
| R26 | 3k3 | 3.3k | ||
| R27 | 1M | 1M | ||
| R28 | 24k | 24k | ||
| R29 | 33k | 33k | ||
| R30 | 510k | 510k | ||
| R31 | 510k | 510k | ||
| R32 | 510k | 510k | ||
| Capacitors 23 | ||||
| C16 | 4u7 | 4.7u | ||
| C18 | 4u7 | 4.7u | ||
| C21 | 4u7 | 4.7u | ||
| C22 | 100u | 100u | ||
| C23 | 2u2 | 2.2u | ||
| C1 | 330n | 330n | ||
| C2 | 470p | 470p | ||
| C4 | 470n | 470n | ||
| C7 | 3n3 | 3.3n | ||
| C8 | 10n | 10n | ||
| C9 | 15n | 15n | ||
| C10 | 470n | 470n | ||
| C12 | 330n | 330n | ||
| C13 | 330n | 330n | ||
| C15 | 1u | 1u | ||
| C17 | 1u | 1u | ||
| C19 | 100n | 100n | ||
| C20 | 220n | 220n | ||
| C3 | 10u | 10u | ||
| C5 | 2u2 | 2.2u | ||
| C6 | 10u | 10u | ||
| C11 | 10u | 10u | ||
| C14 | 2u2 | 2.2u | ||
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | ||
| Transistors 4 | ||||
| Q1 | 2N5089 | 2N5089 | ||
| Q2 | J177 | J177 | ||
| Q3 | 2N5089 | 2N5089 | ||
| Q4 | 2N5089 | 2N5089 | ||
| Potentiometers 7 | ||||
| DEPTH | B50K | B50k | Potentiometer | |
| GAIN | B1K | B1k | Potentiometer | |
| HIGH | B220K | B220k | Potentiometer | |
| LEVEL | A50K | A50k | Potentiometer | |
| LOW | B220K | B220k | Potentiometer | |
| RATE | B50K | B50k | Potentiometer | |
| BIAS | 100K | 100k | Potentiometer | |
| Trimmers 1 | ||||
| TRIM | 220K | 220k | Trimmer | |
| LEDs 2 | ||||
| D2 | 3mm LED | 3MM LED | ||
| D3 | 3mm LED | 3MM LED | ||
| Jacks & sockets 1 | ||||
| J177 | Q2 | Q2 | ||