Hi

> i put this into the c/v trigger in and it triggered the single not per
> step set on the 707, but when put in the arpeggio in nothing
> happened.... is it to do with the (switch/ ground) switch

ok, thats what I feared. Then assumingly it won't work with Audioclick
only. The Arpeggio in requires a so called Trigger-to-switch converter.

If you can solder you can build it very easy on your own. It requires
only one transistor, one resistor and two sockets or jacks. See:
http://www.doepfer.de/faq/gen_faq.htm#S-Trig


Best regards, Florian