Doepfer

Hello Dieter,
I just tried switching the CA3080 around and indeed the switch showed that
the other part was working correctly with a good CA3080.
I will get some from my local electronics dealer which saves me the hassle
of having to contact Thomann again and send the unit back for the second
time.

I however tried switching the chips around on the first unit i had and that
did not work at that time! (of course I tried!) ;-)
 So Thomann will indeed tell you about a defective unit!


Greetings,

Ernst




On Mon, Nov 10, 2008 at 9:08 AM, <yahoo@doepfer.de> wrote:

>   > Hello list,
> >
> > I was wondering..
> >
> > I ordered an A132-1 from Thomann last month.
> > I already have on for years and decided that it was time to get a
> > second one.
> > It arrived by mail and only the top VCA seemed to be working correctly.
> > Believe me, I tested it extensively against the unit I already own.
> > Nothing to be done.. I exchanged it with Thomann, no problem.
> >
> > Today the new unit arrived and it seems that this one has only
> > the bottom VCA working!
> > Are there any other people, who recently bought one having
> > problems with A132-1 units?
> >
> > I'll test a bit more and then probably contact Thomann.. again.. sigh
> >
> >
> > Greetings,
> >
> > Ernst
>
> I'll ask in our sales department if we ever got back an A-132-1 from
> Thomann
> for repair with this fault.
> The A-132-1 is a very simple circuit (nothing but a linear controlled
> CA3080
> OTA) and the only explanation I have is that the CA3080 used in the A-132-1
> are defective. We discovered over the years that a small percentage of the
> CA3080 becomes defective after a couple of weeks or months in use.
>
> Best wishes
> Dieter Doepfer
>
>  
>


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