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Doepfer

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Re: [Doepfer_a100] A-113 input sencetivity/tracking problems

2006-04-25 by vliesgaard

--- In Doepfer_a100@yahoogroups.com, davevosh@... wrote:
>
>  
> In a message dated 4/24/2006 2:21:26 AM Pacific Standard Time,  
> hardware@... writes:
> 
> 
> 
> you are right. It's the same matter. The rectangle output of  the
A-111 is AC
> coupled (capacitor between the rectangle output of the  CEM3340 and the
> socket). This leads to problems with npn transistor input  stages
like the
> A-117 or the A-113 clock input. There is a simple solution:  the
capacitor
> C10 has to be shorted e.g. with a short wire or a solder  blob. C10 is
> located on the small adapter board that holds the 4 output  sockets
near the
> 10 pin connector. We think about replacing the AC coupling 
capacitors of the
> A-111 by wires but have to check first if this may cause  problems
in other
> applications.
> 
> Best wishes
> Dieter  Doepfer
> 
> 
Hello Dieter,

I've just shorted C10 on my A-111.

But the A-113 still has problems with tracking frequency's below 90Hz.

Greetings,

Dirk.

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