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BASSGAINTREBVOL

125B · 4 knobs

PCB Guitar Mania

Imperial Lemon

Based on the EQD Monarch· 1 other board clones it

Category
Overdrive· Pre-Amp overdrive
Controls
Bass · Gain · Treb · Vol
Difficulty
Intermediate
Price
€9.90out 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:

Imperial Lemon is a FET‐based overdrive emulator that nails the vintage-sounding of the Orange amplifiers. Inspired by the now-discontinued Monarch Overdrive by EarthQuaker Devices, this pedal gives you the ability to boost both bass and treble frequencies. This is not an ordinary citron: with an organic, colorful tone that has a full low end and bright highs; the Lemon is certainly Imperial.

Introduction

This J-FET-based board was designed around the Pre-amp section of the Orange amplifiers. Squeeze the Imperial Lemon and get all that juicy thick and saturated fuzzy tones.

The Baxendal EQ section comprises a treble and bass knob that boosts or cuts the desired frequencies. This section is placed in between the first and second gain stages, delivering its classic Orange Flavor.

If you are looking for an overdrive able to produce big fat juicy chords with excellent low-end retention, the Imperial Lemon is the right pedal for you!

Controls

Potentiometers

• Gain

• Vol

• Treb

• Bass

For further analysis on this circuit take a look at this thread on Free Stomp Boxes Forum.

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

Imperial Lemon – Building Docs

Imperial Lemon – 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 46 rows

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RefValueNormalizedTypeNotes
Resistors 18
R11m1M
R268k68k
R310m10M
R410m10M
R510k10k
R633r33
R7100k100k
R822k22k
R9100k100k
R1022k22k
R11470k470k
R121k1k
R131m1M
R141m1M
R1510k10k
R16100k100k
R1710k10k
R184k74.7k
Capacitors 18
C14220p220p
C15100p100p
C17100n100n
C1110u10u
C121u1u
C131u1u
C16220u220u
C1810u10u
C1100p100p
C210n10n
C3470n470n
C422n22n
C52n22.2n
C61n1n
C74n74.7n
C8470p470p
C910n10n
C101n1n
Diodes 1
D21n58171N5817
Transistors 4
Q1BS170BS170
Q22N54572N5457
Q32N54572N5457
Q42N54572N5457
Potentiometers 4
BASS1MAA1MPotentiometer
GAIN1MAA1MPotentiometer
TREB1MAA1MPotentiometer
VOL100KAA100kPotentiometer
LEDs 1
D13mm Red LED3MM RED LED

Other boards based on the EQD Monarch