Akashic Guitar effects PCB lookup
RELEASEDYNAMICSOUTPUTRAR

1590BBS · 4 knobs

Dead End FX

Sparsh V.2

Based on the Guyatone PS-025 Touch Overdrive

Category
Overdrive· Overdrive, Compressor
Controls
Release · Dynamics · Output · Rar
Price
$15.00in stock
Buy the PCB at Dead End FX Build document

From the vendor

Clone of the Guyatone PS-025 Touch Overdrive. Another jewel from the Guyatone PS stable. We converted the original flip-flop type bypass to soft touch silent relay switching. Built in compressor, and Dynamics control, allows for a very nuanced overdrive. Does everything from mellow dirt, to all out screaming leads. One of the nicest overdrives ever produced. The lack of a tone control made us skeptical as to how well it would cover the ground between single coils and humbuckers, but it convinced us that it isn't necessary. If you want to spice up your tone, or just need to wake up a sleepy amp, this will do it. Boy... we sure do miss Guyatone.

The v.2 version supersedes the original board, which used the MV-57B chip for the bypass. This new board uses the Coda bypass scheme. The preprogrammed PIC chip is available here; http://www.deadendfx.com/product/coda-bypass-pic

Schematic

The schematic is in the vendor's build document, page 6. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 107 rows

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RefValueNormalizedTypeNotes
Resistors 54
R2047k47kfrom schematic
R2122k22kfrom schematic
R22100k100kfrom schematic
R2310k10kfrom schematic
R24470r470from schematic
R252k22.2kfrom schematic
R26470r470from schematic
R271m1Mfrom schematic
R2810k10kfrom schematic
R2910k10kfrom schematic
R30100k100kfrom schematic
R3110k10kfrom schematic
R3210k10kfrom schematic
R33220k220kfrom schematic
R3447k47kfrom schematic
R4110k10kfrom schematic
R4210k10kfrom schematic
R431m1Mfrom schematic
R44100k100kfrom schematic
R45470k470kfrom schematic
R461m1Mfrom schematic
R4715k15kfrom schematic
R4847k47kfrom schematic
R493k63.6kfrom schematic
R50100k100kfrom schematic
R5110k10kfrom schematic
R521k1kfrom schematic
R53100k100kfrom schematic
R110k10kfrom schematic
R21k1kfrom schematic
R310k10kfrom schematic
R71m1Mfrom schematic
R810k10kfrom schematic
R947k47kfrom schematic
R1010k10kfrom schematic
R1147k47kfrom schematic
R122k72.7kfrom schematic
R1310k10kfrom schematic
R141k1kfrom schematic
R1510k10kfrom schematic
R1647k47kfrom schematic
R17100k100kfrom schematic
R184k74.7kfrom schematic
R1910k10kfrom schematic
R3510k10kfrom schematic
R3647k47kfrom schematic
R37100k100kfrom schematic
R3862r62from schematic
R3910k10kfrom schematic
R4010k10kfrom schematic
R561k1kfrom schematic
R571k51.5kfrom schematic
R5810k10kfrom schematic
R5910k10kfrom schematic
Capacitors 31
C133u33.3ufrom schematic
C141u1ufrom schematic
C221u1ufrom schematic
C231u1ufrom schematic
C2433n33nfrom schematic
C2515n15nfrom schematic
C261u1ufrom schematic
C2718n18nfrom schematic
C2847n47nfrom schematic
C291u1ufrom schematic
C301u1ufrom schematic
C122n22nfrom schematic
C2100u100ufrom schematic
C347u47ufrom schematic
C4100n100nfrom schematic
C5100n100nfrom schematic
C610u10ufrom schematic
C822n22nfrom schematic
C91u1ufrom schematic
C1022n22nfrom schematic
C1147n47nfrom schematic
C12220n220nfrom schematic
C1522n22nfrom schematic
C1622n22nfrom schematic
C172n22.2nfrom schematic
C181u1ufrom schematic
C191n51.5nfrom schematic
C201u1ufrom schematic
C212n72.7nfrom schematic
C31100p100pfrom schematic
C32100p100pfrom schematic
Diodes 10
D51n41481N4148from schematic
D71n41481N4148from schematic
D81n41481N4148from schematic
D101n41481N4148from schematic
D111n41481N4148from schematic
D121n41481N4148from schematic
D131n41481N4148from schematic
D11n41481N4148from schematic
D21n40011N4001from schematic
D61n41481N4148from schematic
Transistors 2
Q1BC5S49BBC5S49BOCR
Q3BC549BBC549BOCR
ICs 2
IC345584558OCR
IC6CA3080CA3080OCR
Potentiometers 5
ReleaseB1MB1MPotentiometerfrom schematic
DYNAMICSB100KB100kPotentiometerOCR
OUTPUTB50KB50kPotentiometerOCR
RELEASEB1MB1MPotentiometerOCR
RARA7KA7kPotentiometerOCR
Trimmers 3
TRIM1100k100kfrom schematic
TRIM2100k100kfrom schematic
TRIM32k22.2kfrom schematic