T-Rex ApS is a manufacturer of handmade electric guitar effects pedals based in Denmark. T-Rex's line of guitar effects includes the Alberta overdrive and distortion pedal , Mudhoney distortionn pedal, Comp-Nova compressor pedal and Tremster tremolo and vibrato effects pedal. T-Rex also manufactures a line of power supplies for guitar pedals called FuelTank with isolated outputs and both AC and DC outputs.