Re: TI-H: What is C11 in 92?

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: What is C11 in 92?
From: Vojtech Pavlik <vojtech@atrey.karlin.mff.cuni.cz>
Date: Sun, 5 Oct 1997 11:28:45 +0200 (MET DST)
In-Reply-To: <l03110700b04e16b0c518@[155.99.156.7]> from Thayne Miller at "Sep 23, 97 06:02:28 pm"
Reply-To: ti-hardware@lists.ticalc.org

> 
> >The calc doesn't work with 1pf - the clock is then way too high for it.
> >Myself I've attached a variable capacitor, found the minimal capacity needed
> >for the calc to work and then replaced it with a ceramic cap. Works
> >wonderfully
> >-  at >28< MHz!
> >
> >Vojtech.
> 
> what was the capacitence of the cap you put in??? Also, does this turbo
> operation change the speed of fargo games? Aren't they too fast to play???
> I want to implement a switch...Is this possible?

Sorry for the big delay in my reply ... I think it was about 6pf, but I
am not sure about it, as it is hard to measure capacities this small and
also the wires I used have some capacity.

Yes, it does affect some of the Fargo games, and so I made a switch on the
top of the calc. A hopefully understandable schematic follows.


  [c11 pin1]-----[original c11 cap]-----[new cap]----[c11 pin2]
                                     |             |
                                      \-[switch]---/

Vojtech.

References:

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