Akashic Guitar effects PCB lookup
VOLUMEOVERDRIVETONECLEANCURVEFILTER¹PRESENCE¹DRIVE MIX¹

1590BB · 8 knobs

PedalPCB· PCB090

Lamb Chop

Based on the Way Huge Pork Loin

Category
Fuzz· OD / Distortion / Fuzz
Controls
Volume · Overdrive · Tone · Clean · Curve · Filter¹ · Presence¹ · Drive Mix¹
Price
$10.00in stock
Tags
1590BB

From the vendor

The PedalPCB Lamb Chop combines a soft-clipped overdrive path with a modified classic British-flavored preamp. The Lamb Chop exposes three extra controls¹ that were tucked away inside the unit it was inspired by, allowing maximum tweakability.

Controls

• Volume – Controls the overall output volume

• Overdrive – Controls the amount of soft-clipping

• Tone – Rolls off the high end (Turn fully CW to disable)

• Clean – Controls the level of the British preamp signal path

• Curve – Adjusts the corner frequency of the overdrive path

• Filter¹ – Adjusts the tonal spectrum of the clean path

• Presence¹ – Adjusts the high end of the overdrive

• Drive Mix¹ – Controls the level of the overdrive signal path

¹In the original unit the Filter, Presence, and Drive Mix controls were internal trim pots

Specifications

• Designed for a 1590BB enclosure with top-mounted jacks

Schematic

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

Parts list 96 rows

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RefValueNormalizedTypeNotes
Resistors 40
R110K10k
R21M1M
R368K68k
R41K51.5k
R5100K100k
R6390390
R747K47k
R833K33k
R9470470
R102K22.2k
R115K15.1k
R124K74.7k
R1333K33k
R1418K18k
R1510K10k
R16390390
R1747K47k
R1833K33k
R19470470
R202K22.2k
R215K15.1k
R2268K68k
R231K51.5k
R24100100
R25100K100k
R26100K100k
R27100K100k
R28100K100k
R29150K150k
R30150150
R3110K10k
R32100K100k
R3310K10k
R3433K33k
R353K33.3k
R361010
R37100100
R1004K74.7k
R10133K33k
R10233K33k
Capacitors 36
C1100n100n
C21u1u
C322u22u
C42n22.2n
C5330p330p
C622u22u
C747u47u
C81n1n
C91u1u
C101u1u
C112n22.2n
C1247n47n
C13220p220p
C141u1u
C151n1n
C16330p330p
C1722u22u
C181u1u
C1910n10n
C201u1u
C21100u100u
C2256n56n
C23100p100p
C24100n100n
C25100n100n
C261n1n
C27100p100p
C28470n470n
C2947n47n
C30100p100p
C3147n47n
C32470n470n
C33100p100p
C3410n10n
C10047u47u
C10110u10u
Diodes 3
D11N9141N914
D21N9141N914
D1001N58171N5817
Transistors 7
Q12N70002N7000
Q22N24842N2484
Q32N24842N2484
Q42N24842N2484
Q52N24842N2484
Q62N24842N2484
Q72N24842N2484
ICs 2
IC1LF353LF353
IC2LM833NLM833N
Potentiometers 8
VOLUMEB100KB100kPotentiometer
TONEA10KA10kPotentiometer
OVERDRIVEA500KA500kPotentiometer
FILTERB50KB50kPotentiometer
DRIVEMIXB100KB100kPotentiometer
CLEANB100KB100kPotentiometer
CURVEB10KB10kPotentiometer
PRESB10KB10kPotentiometer