OK so for example for Bass Drum you used pin 7 of IC27 Would you get
a better signal if you tapped into it after it went through the
transistor Q26

Doug

--- In tr-707@yahoogroups.com , "gregory zifcak" <foleymachine@y...>
wrote:

>
> hi all, i'm back.
>
> here is the trigger out mod that i did:
>
> 1. look at the schematic in the files section called "s-trig to
> v-trig" or something like that.
>
> 2. in place of the 9v battery, connect to a +5v point on the circuit
> board. this should be findable with the 707 schematic.
>
> 3. find the chips on the 707 schematic labeled "trigger A" and
> "trigger B."
>
> 4. connect those trigger pins for the sounds you want to have the
> trigger outs (i only did six) to the s-trig input located on the
> schematic.
>
> 5. output of the trigger schematic to a jack of your choice.
>
> note: my trigger outs trigger my drum synths very well, but if i try
> to use it to step the sh101 arpeggiator, it glitches. i haven't

tried

> it with other synths or sequencers. it might be a more precise

trigger

> signal if you instead make a one-shot with a 555 and connect it to
> those trigger points. then you could control the length of the

pulse.

> i have not tried this though.
>
> good luck!
>
> greg
>
> --- In tr-707@yahoogroups.com , "memology2003" <memology2003@y...>

wrote:

> >
> > Hi,
> > I would like to add a few more trigger outs to my 707 and 727 to
> > trigger percussion synths I have built. Can anyone give detailed
> > instructions for doing this eg schematic plus connection points.
> > Thanks,
> > Steve