Hi Ken,
Thanks for the suggestions. I have finally gotten a chance to try
out your second suggestion. I put 100n caps between each gate out and
the bottom lug of the switch and then a 100k resistor between the mix
gate out and ground (I tried without the 100k first). The mix gate
out now does not trigger at all and the individual gates still only
trigger every second step. Did I miss something?
I'm not sure how to do the first suggestion [cutting the inhibit in
to the gate 4051 (pin 6 )and connecting it to the clock instead (pin 7
of the quad op-amp)], if I do try it should I first take out the 100n
caps and the 100k resistor?
Thanks,
Dave
Thanks for the suggestions. I have finally gotten a chance to try
out your second suggestion. I put 100n caps between each gate out and
the bottom lug of the switch and then a 100k resistor between the mix
gate out and ground (I tried without the 100k first). The mix gate
out now does not trigger at all and the individual gates still only
trigger every second step. Did I miss something?
I'm not sure how to do the first suggestion [cutting the inhibit in
to the gate 4051 (pin 6 )and connecting it to the clock instead (pin 7
of the quad op-amp)], if I do try it should I first take out the 100n
caps and the 100k resistor?
Thanks,
Dave
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> Each gate signal lasts a full clock cycle so it is no wonder you get a
> constant 5 volts when all are used.
>
> You need to shorten the output pulses.
>
> Try cutting the inhibit in to the gate 4051 (pin 6 )and connecting
it to the
> clock instead (pin 7 of the quad op-amp).
>
> Alternatively,
> Try putting a 100n between each gate output and its switch, and a
100k from
> the switch to to ground (if needed).
>
> Ken
>
> >Hi,
> >
> > I just finished my sequential switch using Bridechambers panel with
> >extra holes drilled for LEDs and a mix gate out. I have yet to
> >connect the glide and length switch. Everything works great except
> >the gate outs that work rather sporadically.
> > I have the the panel set up so that the gate outs are all mixed down
> >to one common output with a switch at each stage to turn it on or off.
> > The set up is like this (I used IN1418 diodes):
> >
>
>http://www.bridechamber.com/bridechamber.com/C%20Event%20Seq_files/ev%20seq
> %20wire%20diagram-1.jpg
> >
> >I can get the mix gate to trigger every second step, but if I turn all
> >of the steps on then nothing gets triggered (I measured the voltage
> >and it's a constant 5V). I have the same problem with the individual
> >gate outs too, if I plug every second jack then it triggers my Blacet
> >EG fine but if I plug every jack then nothing.
> > I used a rather small gauge wire to hook up the gates (I think
> >28-30AWG), it looks like a computer harddrive cable, I used it because
> >I thought it would make for a cleaner design. Maybe the casing on the
> >wire is too thin or the wire is too thin and it's picking up
> >interference from something, I have no idea really. Any suggestions
> >would be appreciated,
> >
> >Thanks again,
> >Dave
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
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>