Re: TI-H: 0.1 capticitor


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Re: TI-H: 0.1 capticitor



On Sat, 9 Nov 1996, Mel Tsai wrote:


> >I just read a book that explained why just taking it out works (I've 
> >heard discussion and confusion about this).  Anyway, here's an ascii of 
> >an RC circuit, and it'll explain everything:
> Yes, this is a classic RC network.  If it's actually how the timing is
> setup in the TI, then it's impossible to go any faster than just
> leaving out the capacitor, because the various components and
> connections all have their own input capacitance.  HOWEVER, if you
> were to find out where that resistor is, replacing it with a smaller
> value will speed it up even more.  Eventually you will get to a point
> where the chip just isn't fast enough and you may even damage the
> processor.
> This is speculation, however, because no one is sure whether this is
> how the clock is setup in the TI-85.  It could be totally different
> from an RC network.  Nonetheless, this isn't how a well made computer
> circuit is done.  It's just the cheap way out because they don't need
> exact timing.


Yes, I understand that, but the chances that taking out the capacitor 
makes it go really fast and it not being an RC circuit like I drew is 
really close to zero.  Also, it wouldn't be that hard to just follow the 
leads coming from C9 to find the resistor, would it?


Tony Lieuallen = lieuallen@iop.com          Oxymoron: Power Macintosh
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"There are some micro-organisms that exhibit characteristics of both
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