G-Major / G-Major 2 / G-System: Channel switching with Randall RH150G3

Question

How do I wire a custom cable to switch the Randall RH150G3?

Answer

From a TRS jack connected in the G-major switching output:

TIP = Pin 1 
RING = Pin 2
Sleeve (GND) = Pin 5

Notes:

  • Connect  pin 3 to ground for permanent reverb.
  • Connect  pin 4 to ground  for permanent boost. 

Pin assignment of the Randall custom plug:

Pin 1 : Clean/od
Pin 2 : Od1/od2
Pin 3 : Reverb
Pin 4 : Boost clean
Pin 5 : Ground
Pin 6 : ?


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