Analogue systems

Two more suggestions:

I've only had a pot go bad once in over 10 years of owning many of Bob's modules, but a dirty or worn or otherwise slightly duff clock speed pot could be the source of your speed fluctuation rather than anything more complicated. It's easy enough to replace too.

Have you checked that the external clock input socket is clean and the normalising contacts are making good connections when no jack is inserted?


Best of luck

Sean

--- In analogue_systems@yahoogroups.com, coenen olivier <coenen.olivier@...> wrote:
>
> Hello Terje,
> 
> I know a little drift is part of the game with analogue stuff, but,  
> what I've experienced is more
> than "natural" drift caused by temperature and likes ...
> I think it is plausible that one or another component is/are beyond  
> suitable tolerance and could/should be replaced
> for better stability.
> My problem is to detect the components that might be responsible for  
> the drift...
> 
> Thanks for your input :-)
> 
> Cheers,
> 
> Z.
> 
> On 16 Oct 2011, at 17:03, Terje Winther wrote:
> 
> > > I've noticed on several occasions that the clock of my RS-200 is far
> > > from rock steady...
> > >
> > Yes, all analogue step sequencers drift a little. Not much, and I
> > think my AS-200 is fairly steady, but as you have noticed: it is not
> > rock steady like something digital.
> > Temperature, humidity and the amount of time used influence the tempo.
> >
> > Terje Winther
> > terje.winther@...
> > http://www.wintherstormer.no/
> >
> > [Non-text portions of this message have been removed]
> >
> > 
> 
> 
> 
> [Non-text portions of this message have been removed]
>