1970s Electro Harmonix LPB-1

A fascinating early effect from icons of all things effect pedals, Electro Harmonix. 

Originally releasing in 1969 as one of the EHXs first effects, this particular LPB-1 based off graphics appears to be mid-late '70s. Super simple unit that plugs direct into the amp, and when switched on does exactly what you'd expect. It sounds like it adds a little more high end and brightness without being ice picky, which is very cool. 

Fully functional, and ready to rock!