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PCB Guitar Mania

JFT Phaser

Based on the JFT Phaser section + solid-state

Category
Phaser· Phaser, Compressor-sustainer
Difficulty
Advanced
Price
€14.90out of stock
Tags
soviet

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 PCB Guitar Mania’s original design is inspired by the Soviet double pedal Jet-Fazer (Джет-Фазер) produced in the late ’70s – early ’80s. One part is a vintage phaser, and the second is a compressor-sustainer that gives a huge variety of sounds, from overdrive to gated high-gain fuzz.

Introduction

Do not confuse it with the American Jet Phaser; The JFT Phaser is a fearsome piece of Soviet engineering of its own, combining a JFT Phaser section with an interesting solid-state Distortion circuit.

With 8 knobs, 3 switches and 2 footswitches, this Soviet behemoth is a build for experimentation and sonic exploration.

Controls

Potentiometers

• DEPTH-TRIM

• FAZER_LEVEL-TRIM

• GAIN-TRIM

• TR7

• TR9

• WAVE-TRIM

Switches

• SOFT/HARD

• DIODE

• FAZER/VIBRO

Video demo

For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

JFT Phaser 1v1 – Building Docs

JFT Phaser – Drilling template

Schematic

The schematic is in the vendor's build document, page 7. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 141 rows

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RefValueNormalizedTypeNotes
Resistors 70
R3751k51k
R3851k51k
R14k74.7k
R39110k110k
R21M1M
R40100k100k
R3100k100k
R41110k110k
R4110k110k
R4251k51k
R55k65.6k
R4351k51k
R64k74.7k
R44110k110k
R7100k100k
R452k22.2k
R830k30k
R4630k30k
R9110k110k
R4730k30k
R10470k470k
R4810k10k
R1151k51k
R4930k30k
R1251k51k
R5022k22k
R13110k110k
R514k74.7k
R14100k100k
R524k74.7k
R1515k15k
R53910r910
R16110k110k
R541k1k
R1751k51k
R5533k33k
R1851k51k
R5633k33k
R19470k470k
R57100k100k
R20110k110k
R584k74.7k
R21100k100k
R59130k130k
R22220k220k
R601M1M
R23110k110k
R618k28.2k
R2415k15k
R627k57.5k
R2551k51k
R634k74.7k
R2651k51k
R6468k68k
R27110k110k
R6543k43k
R28100k100k
R66130k130k
R29110k110k
R67220k220k
R3043k43k
R682k2k
R3151k51k
R6922k22k
R3251k51k
R7012k12k
R33110k110k
R34100k100k
R353k3k
R36110k110k
Capacitors 40
C1100n100n
C347n47n
C415n15n
C5100n100n
C633p33p
C715n15n
C8100n100n
C933p33p
C1015n15n
C11100n100n
C1233p33p
C1415n15n
C15100n100n
C1733p33p
C2015n15n
C21100n100n
C2333p33p
C2415n15n
C25100n100n
C2633p33p
C271n1n
C2922n22n
C31100n100n
C3615n15n
C3715n15n
C3815n15n
C391n51.5n
C40100n100n
C24u74.7u
C134u74.7u
C164u74.7u
C184u74.7u
C19100u100u
C22100u100u
C2810u10u
C3010u10u
C32100u100u
C33100u100u
C342u22.2u
C3510u10u
Diodes 8
D14V74V7
D23mm3MM
D31N341N34
D41N341N34
D5SiSI
D6SiSI
D71n58171N5817
D83mm3MM
Transistors 10
Q1J201J201
Q2J201J201
Q3J201J201
Q4J201J201
Q5J201J201
Q6J201J201
Q72N50892N5089
Q82N51162N5116
Q92N50892N5089
Q102N50892N5089
ICs 4
IC1TL074TL074
IC2TL074TL074
IC34007N4007N
IC4TL071TL071
Potentiometers 7
BLENDB220KB220kPotentiometer
D.LEVELA50KA50kPotentiometer
F.LEVELA50KA50kPotentiometer
GAINA220KA220kPotentiometer
GATEB2KB2kPotentiometer
RESONANCEB50KB50kPotentiometer
SUSTAINB5KB5kPotentiometer
Trimmers 1
TRIM33K33kTrimmer
Jacks & sockets 1
J201Q1Q1