Yes its the CD UB variant, Is there an easy way to test the LM3080? I got mine from LB designs, I cant imagine they are all bad?
What should the voltages be on the LM3080 typically be? Pin 5 is at -5 and turning the freq pot all the way it only drops to like -4.9?
I am sure I have made some stupid error???
Robert
What should the voltages be on the LM3080 typically be? Pin 5 is at -5 and turning the freq pot all the way it only drops to like -4.9?
I am sure I have made some stupid error???
Robert
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
>
> >What is the CVSN for ? I did not connect it as I assumed it was optional
> for centring the freq pot.
>
> Control Voltage Summing Node. It is a point where more inputs can be added
> via extra resistors.
>
> >Any ideas?
>
> Did you swap out the LM3080? Is the CMOS chip OK? Is it the unbuffered (UB)
> variant?
>
> If everything is right, it should work.
>
> Ken
> _______________________________________________________________________
> Ken Stone sasami@... otherunicorn@...
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