Akashic Guitar effects PCB lookup
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Enclosure not stated

PCB Guitar Mania

Poly-face

Based on the Polyphaser EHX

Category
Phaser· Ultimate Vintage Phaser –
Difficulty
Advanced
Price
€19.90out 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

Inspired on Electro Harmonix Polyphase. Ready to challenge yourself with a rare vintage unit?

Introduction

Welcome to the experimental guitarist’s paradise. The Poly-face offers a level of interactivity way beyond a typical pedal to give you the most important thing: total control.

Its complexity enables you to have a level manage over the effects parameters that are not that far away from what a synthesizer can offer.

Not only does it deliver the classic phase sounds, but it also reaches new dimensions with its envelope filter mode. It is no beginner project for sure; controls for rate, feedback, envelope sensitivity, envelope modulation, and modulation rate plus a sweep toggle will do everything between funky envelope filter to Leslie-like rotary sounds.

Is it necessary to mention the enormous potential that this pedal hides behind these features?

Now let us go to the technical part; make sure you source your TL1054 from a trusted source. Also, keep in mind there are three optocouplers. If you decide to use LDRs and LEDs, you need to cover them (some guys put them in a heat sink tube) because otherwise, the light of one will affect multiple light-sensitive resistors at once.

Controls

• Mod

• Rate

• Sense

• Feedback

• Rate

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

Polyface – Building Docs

Polyface – 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 147 rows

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RefValueNormalizedTypeNotes
Resistors 79
R37100k100k
R753k63.6k
R3815k15k
R763k63.6k
R12R22.2
R39470k470k
R7715k15k
R2100R100
R40470k470k
R781M1M
R3100R100
R4115k15k
R791m1M
R4100R100
R42240k240k
R522K22k
R43100k100k
R66k86.8k
R4415k15k
R7100k100k
R45100k100k
R8390R390
R46100k100k
R956k56k
R47100k100k
R10620k620k
R48100k100k
R111k31.3k
R4915k15k
R12470k470k
R50100k100k
R13390k390k
R5115k15k
R1475k75k
R52100k100k
R1551k51k
R5315k15k
R16470k470k
R54100k100k
R17100k100k
R55100k100k
R18100k100k
R562k72.7k
R1956k56k
R5715k15k
R2056k56k
R5810k10k
R21100k100k
R59330R330
R22620k620k
R6015k15k
R23220k220k
R6115k15k
R2418k18k
R6212k12k
R255k15.1k
R63100k100k
R26620k620k
R644k74.7k
R27100k100k
R6575k75k
R284k74.7k
R6615k15k
R2982k82k
R6715k15k
R3036k36k
R68820k820k
R3122k22k
R6939k39k
R324k74.7k
R70100k100k
R3318k18k
R7115k15k
R348k28.2k
R7218k18k
R3515k15k
R7343k43k
R3615k15k
R7436k36k
Capacitors 38
C4100n100n
C6100n100n
C1047n47n
C158n28.2n
C1947p47p
C214n74.7n
C235n65.6n
C24470n470n
C2510n10n
C2722n22n
C2822n22n
C2910n10n
C3010n10n
C3110n10n
C3310n10n
C34330n330n
C3610n10n
C374n74.7n
C110uf10u
C210uf10u
C3220uf220u
C5100uf100u
C7100uf100u
C8100uf100u
C9100uf100u
C111uf1u
C12470nf470n
C131uf1u
C1422uf22u
C162u22.2u
C1710uf10u
C1810uf10u
C2022uf22u
C221uf1u
C2622uf22u
C3210uf10u
C351uf1u
C381uf1u
Diodes 9
D71N9141N914
D81N9141N914
D91N40011N4001
D11N58171N5817
D21N58171N5817
D31N58171N5817
D41N9141N914
D51N9141N914
D61N9141N914
Transistors 5
Q12N50882N5088
Q22N50882N5088
Q32N50872N5087
Q42N39042N3904
Q52N50882N5088
ICs 10
IC2JRC4558JRC4558
IC3CD4013.2CD4013.2
IC4CA3140CA3140
IC5JRC4558JRC4558
IC6LM324LM324
IC7JRC4558JRC4558
IC8LM1458LM1458
IC9JRC4558JRC4558
IC10JRC4558JRC4558
IC1LT1054LT1054
Potentiometers 6
ENV.MOD100KBB100kPotentiometer
ENV.RATEC1MC1MPotentiometer
ENV.SENSE10KBB10kPotentiometer
FEEDBACK100KBB100kPotentiometer
MOD100K100kPotentiometer
SENSE10K10kPotentiometer