Cgs synth

>
> hi all,
> starting n a dual psycho lfo panel.
> I was think of a simple comparator output in addition to the

> outputs.
> This extra out would come from a comparator, comparing
> each p-lfo before the glide circuit. not sure how much design I

> I was thinking a dual op-amp (tl072) with 1 k inputs resistors

> thelfo tap followed by a second op-amp as a buffer with 1 k

>
> no sure what the "high" level will be from the comparator, but
> whatever the voltage the follower could make it +5 ....
>
> anyway just my primative hacking ...any siggestion welcomed.
> just looking for a high gate based on the two p-lfo

>
>
> best to all,
> Jeff

--- In cgs_synth@yahoogroups.com, sasami@h... wrote:
> >
> >hi all,
> >starting n a dual psycho lfo panel.
> >I was think of a simple comparator output in addition to the
normal
> >outputs.
> >This extra out would come from a comparator, comparing
> >each p-lfo before the glide circuit. not sure how much design I
need,
> >I was thinking a dual op-amp (tl072) with 1 k inputs resistors
from
> >thelfo tap followed by a second op-amp as a buffer with 1 k output.
>
> Go up to 10k input resistors - less stress on the op-amp inputs.
>
> >no sure what the "high" level will be from the comparator, but
> >whatever the voltage the follower could make it +5 ....
>
> As the op-amp will be across the +/- power rails, the output will
swing
> between + and -, almost reaching the power rail. If you want 5V
out, connect
> a 1N4148 to the output of the opamp (anode to the output). Connect
a 1k8
> from the cathode of the diode to the output jack. Connect a 1k from
the
> output jack to GND
>
> Ken
>
______________________________________________________________________
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> Ken Stone sasami@h...
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