Roger Meyer Octavia (was: electro harmonix frequency multiplexer)

[media at mail1.nai.net]

At 2:04 PM +0100 08/30/00, Goddard, Duncan wrote:
>
>I came across a device a couple of years ago that was supposed to shift the
>input signal *up* an octave; it was part of a fuzzbox called a "foxtone".

A Roger Meyer Octavia also shifts up by one octave.  I have no idea how it
works.  If someone has a schematic I'd love to see it.


>my task was to copy the interesting bit of this thing and squish it into
>a big muff (oo-er!). it turned out to be a phase-splitter, with one output
>being inverted and added then the new funny shaped waveform (all even
>harmonics, I expect someone will point out) being waveshaped into something
>resembling a sawtooth prior to further distortion. I was astonished to
>actually hear this thing on a guitar instead of just looking at it on a
>'scope. it worked very well for lead parts but again, not for chords.