Ok I mailed the guy yesterday for the voice of saturn and his response was:
"The output is hertz/volt agnostic, or in other words, the knob lets you adjust from 0V to about 8V depending on the battery, and how this voltage is interpreted depends on the receiving device.
Since volts/octave machines are usually 0-5V (see wiki control voltage ), that should give 3 octaves. On Hz / volt machines, I think the 0-8V range should almost make 5 octaves."
NICE
Still the "depending on how the voltage is being interpreted by the recieving device" leaves me kinda confused if it works now for shure or not.
maybe I get a voice of saturn, they look awesome dopplereffekt style like from some german electronics laboratory in the seventies.
But first think i'll try getting a trigger conversion for the 707 and see how much that works for me alone.