JHS Pedals 539090 Operating instructions

  • Hello! I've reviewed the user manual for the JHS Pedals Overdrive Preamp. This manual details how this pedal can be used as a solo boost, preamp, or transparent overdrive/distortion. It also explains the use of its level and gain controls, as well as a slider switch that allows to chose between two clipping arrangements. I'm ready to answer your questions regarding this device.
  • What does Level control do?
    What does Gain control do?
    What does the SLIDER switch do?
OVERDRIVE PREAMP
JHS Overdrive Preamp is a faithful recreation of an extremely
rare (read: practically unknown) rst version of the DOD 250
Overdrive Preamp. If you love the 250 and are familiar with the
legendary Gray Box and Yellow Box versions, this is a must-
have addition to your collection. The JHS Overdrive Preamp is
a powerful tone shaping tool that can be used as a solo boost,
always on preamp, transparent overdrive or distortion. No
matter the musical genre or which amps or pedals you have in
your chain, the Overdrive Preamp is the pedal for you.
CONTROLS
LEVEL - “Level” adjusts the overall output of the circuit and lets you cut or boost the signal.
GAIN - “Gain” adjusts the amount of gain inside the overdrive circuit. Turning up “Gain” creates
more clipping as it pushes the op-amp and hard clipping into overdrive.
SLIDER - This slider switch allows you to explore two variations within the V1 clipping
arrangements. The slide switch DOWN replicates the clipping from the earliest version ever found
(this mode is the most distorted and saturated of the two). The slide switch UP uses the clipping
arrangement found in a later serial number (this mode is a bit more open, louder and more clear).
POWER - Can be powered between +9 to +18 DCV center negative. Do not use more than +18
DCV. Your warranty will be voided. 5mA current consumption.
DOD IS A REGISTERED TRADEMARK. THE JHS PEDALS OVERDRIVE / PREAMP IS
IN NO WAY AFFILIATED WITH OR ENDORSED BY DOD.
/