Akashic Guitar effects PCB lookup
LAGRATE

125B · 2 knobs

PCB Guitar Mania

Julio

Based on the Walrus Audio Julia Analog

Category
Vibrato / Chorus· Chorus&Vibrato
Controls
Lag · Rate
Difficulty
Advanced
Price
€11.90in 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:

Julio comes with a myriad of controls that allows you to dial in all types of classic and unique chorus/vibrato sounds that can blend together in unusual ways; get mild smooth chorus, seasick vibrato, and everywhere in between.

Introduction

We all know that the market for boutique wobble boxes is highly saturated; but, from time to time, there is a chance of finding unique pedals that can push musicality as hard as sound quality. Julio is one of those gems, a genuinely innovative circuit created with a think-outside-the-box type of mentality.

With controls like Depth, Rate, Blend, and a Shape switch, you can dial in all types of classic and unique chorus/vibrato waves. Some settings give a familiar feel while others go directly into unknown territory.

A special feature of the Julio is the Lag control. The Lag knob lets you set the center delay time that the LFO effect modulates from. This knob adds a new dimension to the traditional Chorus/Vibrato landscape, from smooth and tight modulation at lower settings to warbling detune at maximum.

If you crave shimmering textures and sensuous motion in your clean tones, Julio is the pedal that will grant you all.

Controls

Potentiometers

• Depth

• Rate

• Blend

Switches

• Shape

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

Julio 1v2 – Building Docs

Julio 1v1 – Building Docs

Julio – Building Docs

Julio – Drilling template

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 90 rows

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RefValueNormalizedTypeNotes
Resistors 46
R386k86.8k
R3933k33k
R11m1M
R401m1M
R31k1k
R4110k10k
R4470k470k
R4247k47k
R510k10k
R434k74.7k
R647k47k
R4433r33
R710k10k
R4510k10k
R847k47k
R910k10k
R4710k10k
R10100k100k
R1110k10k
R1210k10k
R1310k10k
R1410k10k
R1556k56k
R164k74.7k
R17330k330k
R1810k10k
R1910k10k
R2010k10k
R2110k10k
R2233k33k
R232k72.7k
R241m1M
R2512k12k
R2612k12k
R2712k12k
R2812k12k
R2947k47k
R3010k10k
R31470r470
R32100k100k
R3333k33k
R344k74.7k
R354k74.7k
R3647k47k
R3722k22k
R28n28.2e-09
Capacitors 25
C147n47n
C21u1u
C36n86.8n
C4100p100p
C533n33n
C63n33.3n
C78n28.2n
C8470p470p
C933n33n
C103n33.3n
C118n28.2n
C12470p470p
C1333n33n
C1447p47p
C16100p100p
C176n86.8n
C181u1u
C1910n10n
C2047n47n
C22100n100n
C1510u10u
C21100u100u
C2347u47u
C24220u220u
C2510u10u
Diodes 4
D11n9141N914
D21n9141N914
D6ZenerZENER
D71n58171N5817
Transistors 5
Q32N50882N5088
Q42N50882N5088
Q52N50882N5088
Q12N50882N5088
Q22N50882N5088
ICs 4
IC1MN3207MN3207
IC2MN3102MN3102
IC3RC4558RC4558
IC4TL022TL022
Potentiometers 2
LAG250KBB250kPotentiometer
RATE100KBB100kPotentiometer
Trimmers 1
TRIM50K50kTrimmer
LEDs 3
D33mm Red LED3MM RED LED
D43mm Red LED3MM RED LED
D83mm Red LED3MM RED LED