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PCBWay: Glory to Ukraine

Super Hard On

Based on the Z.Vex Super Hard-On· 13 other boards clone it

Category
Preamp / Amp-in-a-box
Controls
Level
Price
see vendorin stock
Tags
ZVEX, Guitar pedal, Boost, Preamp, ZVEX, SHO, Super Hard On
Order the board at PCBWay Schematic image (CC BY-SA)

From the vendor

The ZVEX Vexter Super Hard On is the perfect preamp pedal. Perfect for making the most of a classic amp and guitar, because it simply makes your guitar bigger and pushes the amp harder, causing natural overload. One of the pleasing sonic characteristics of this pedal is a restoration of the sparkling high frequencies that can be lost in cables. The output level can exceed 8 volts peak, and when it finally distorts, the wave is shaped like triode overload, not fuzz. It's so transparent no one will be able to tell you're using a pedal.

Schematic

The schematic image is on the project page. Open it at PCBWay.

Parts list 13 rows

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Check before you build · 1 value the reader of this schematic was not sure of
  • electrolytics labelled 100mF and 10mF on the drawing; transcribed as 100u and 10u
RefValueNormalizedTypeNotes
Resistors 6
×210M10Mread from the schematic by eye
×14747read from the schematic by eye
×14k74.7kLED resistor; read from the schematic by eye
×15k15.1kread from the schematic by eye
×12M2Mread from the schematic by eye
×1100100read from the schematic by eye
Capacitors 3
×1100u100udrawn as '100mF', read as 100uF; read from the schematic by eye
×110u10udrawn as '10mF', read as 10uF; read from the schematic by eye
×1100n100nread from the schematic by eye
Diodes 2
×11N40011N4001read from the schematic by eye
×19V19V1zener; read from the schematic by eye
Transistors 1
×1BS170BS170read from the schematic by eye
Potentiometers 1
LevelA100kA100kPotentiometerread from the schematic by eye

Other boards based on the Z.Vex Super Hard-On