Elektor Formant

[tomg]

Hey René. What I am saying is I don't know for sure that will work.
AFAIK nobody has actually replaced a 726 with a diff-pair and tempco
without other sometimes major modifications. I have tried everything
(over and over....I know it's insane but I'm stubborn as well ) in some
Curtis and still no joy...;-( One of these days the Sonic6 VCOs will
live again but this question will have to be solved first. So to the
keyboard techs out there what do you do with a dead 726 in the S6's
VCOs if you can't just replace it?

Tom



> Hi Tom et al!
>
> You're right, but if that was the main goal, i.e. you have an etched
> formant board or a dead synth which is ready to go for the uA726, its way
> easier to put in a tempco somewhere (there is most likely already a good
> place somewhere in there...) and fumbling the MAT into it in place of the
> uA, than finding enough room for a servo loop opamp, a current limit
> resistor and of course the CA3046.
> I think it will be rather seamless, instead of a dongle with all the extra
> stuff on it. Plus you're guaranteed that there will be no trouble with the
> PSU.
>
> IMO of course.
>
> Bye,
>  René
>
>
> At 12:57 05.10.00 -0700, tomg wrote:
> >Still won't work in place of a 726!
> >Bye
> >Tom
> >
>
> --
> uzs159 at uni-bonn.de
> http://www.uni-bonn.de/~uzs159
>
>
>