Hi, got no answer for you, just want so say,
same here, don't know exactly which photo coupler to buy
VTL5C2 (4 pins)
VTL5C3 (4 pins)
VTL5C3/2 (5 pins)
Looking forward to answers,
tuning is not possible with trimpots.
Christian
--- In PolySix@yahoogroups.com, "arpm234" <arpm234@...> wrote:
>
> Hello guys,
>
> I've just started to work on tunning the voices and i realised my opto coupler is dead.
>
> So i read through the topics and learned that VTL5C3 would be the sollution. However i only got VTL5C2 which has only two pin on the photoresistor side, with a connection in the middle of the resistor which is connected to R93 which is said requires some changes.
>
> So what is that middle pin required for ? How can a 2 pin photocoupler be used if possible at all ?
>
> Any thoughts?
>
> Thanks
> Razvan
>