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TREBLEVOLDEEPGAINMIDPRESBASS

1590BB · 7 knobs

PCB Guitar Mania

Benzin VH4

Based on the Diezel VH4 Pedal· 1 other board clones it

Category
Distortion· High Gain Pre-amp
Controls
Treble · Vol · Deep · Gain · Mid · Pres · Bass
Difficulty
Advanced
Price
€11.90out 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

Based on the formidable high-gain tone of the VH4 tube amplifier, the Benzin VH4 Pedal delivers all the high-intensity distortion you can handle. Specifically based on the VH4’s Mega channel, the VH4 Pedal starts with wide-ranging controls for Gain, Treble, Middle, and Bass. Essentially, the Benzin VH4 Pedal puts one of the most revered metal amp channels on your pedal board.

Introduction

Unlike traditional overdrive stomp boxes, the VH4 Pedal is a true preamp that delivers an authentic representation of its namesake – real Diezel tone – not emulated, not modeled, but sincerely reproduced. The entire signal architecture is faithful to the original: Bass, Mid, Treble, and variable Deep and Presence controls allow you to tailor the uniquely Diezel Overdrive character. The command found in the Gain control gives a player everything they will ever need with lower gain settings producing the classic Diezel sparkle and chime to saturated mid-gain sounds, to scorching Diezel leads by cranking it all the way up.

As close to the original VH4 preamp, the VH4 pedal can be used as either an overdrive or as a standalone preamp to feed into your amps power section. What players take away by going direct into the power amp is all the dynamic, unfiltered Diezel tone by simply plugging into your amplifier’s clean channel. Two outputs are provided, with the first intended to connect to the front of a guitar amplifier and the second allows for a connection to a line-level power amp or power section of your amp via the Effects Return.

Controls

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.

Benzin VH4 – Building Docs

Benzin – 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 73 rows

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RefValueNormalizedTypeNotes
Resistors 32
R11M1M
R21M1M
R3100k100k
R4220k220k
R510k10k
R6470k470k
R7220k220k
R8680k680k
R9220k220k
R101M1M
R1110k10k
R12100k100k
R13470k470k
R14220k220k
R15220k220k
R1610k10k
R1739k39k
R181M51.5M
R19100k100k
R2010k10k
R214k74.7k
R221k1k
R23150k150k
R24100k100k
R25100r100
R2656k56k
R2747r47
R28100k100k
R2910r10
R301k1k
R3110r10
R1002k22.2k
Capacitors 23
C122n22n
C2100p100p
C31u1uelec
C4100p100p
C51u1uelec
C622n22n
C72n22.2n
C847p47p
C92u22.2uelec
C104n74.7n
C11100p100p
C122u22.2uelec
C13560p560p
C1422n22n
C1522n22n
C161n1n
C1710u10uelec
C1810u10uelec
C192n22.2n
C202u22.2u
C211u1uelec
C22330n330n
C231u1uelec
Diodes 7
D058175817
D141484148
D241484148
D352325232
D452325232
D541484148
D641484148
ICs 4
IC3CP1CP1
IC4CP2CP2
IC1OPA2134**OPA2134
IC2TL072CPTL072CP
Potentiometers 7
TREBLE250KBB250kPotentiometer
VOL10KAA10kPotentiometer
DEEP25KCC25kPotentiometer
GAIN250KAA250kPotentiometer
MID25KBB25kPotentiometer
PRES25KCC25kPotentiometer
BASS1MAA1MPotentiometer

Other boards based on the Diezel VH4 Pedal