mxr pitch-shift doubler:

	polypad, no effect
	polypad, #1
	polypad, #2
	matrix-1000, no effect
	matrix-1000, #1
	matrix-1000, #2
	dx7 bells, no effect
	dx7 bells, #1
	dx7 bells, #2
	dirty guitar, no effect
	dirty guitar, #1
	dirty guitar, #2
	acoustic guitar, no effect
	acoustic guitar, #1
	acoustic guitar, #2
	electric guitar, no effect
	electric guitar, #1
	electric guitar, #2
	electric guitar, #3
	rhythm guitar, no effect
	rhythm guitar, #1
	rhythm guitar, #2
	rs09 strings, no effect
	rs09 strings, #1
	rs09 strings, #2

mxr pitch-shift doubler board

art (mxr) pitch transposer top board

art (mxr) pitch transposer bottom board