Re: TI-H: My TI92 Hardware Homepage : RTLink?

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Re: TI-H: My TI92 Hardware Homepage : RTLink?


Its is a huge butt uglu hoax.  Thats all there is to it.

I thought that was common knowlege?  TIcalc needs to take that down...

Grant



>The only answer I can give to you is just the first question. If you
>want a reference book of electronic symbols, I use radio shack's book.
>I forgot what it is called, but it is green colored, it is made of
>cheap paper, and the area size is pretty big.
>
>
>
>
>---David Knaack <dknaack@geocities.com> wrote:
>>
>>
>> From: Christian Auer <ca1@gmx.net>
>> >My TI92 Hardware Homepage has been updated...
>> >http://members.xoom.com/Ti92/index.html
>>
>>
>> You mention on the radio link page that you don't understand some of
>the
>> symbols used in the schematic, like which ones?  He is using those
>little
>> trapezoids for transistors and in one place he has a cap drawn with
>the
>> gap filled with slanted lines.  Not sure what that means.
>>
>> I have three questions about this circuit.  I'm no EE, my
>electronics skill
>> doesn't extend much above the basics, so I may be totally off, but a
>couple
>> of things looked a bit strange to me.
>>
>> First, and this is a big one, there is no indication that the
>separate power
>> supply for this thing has a common ground with the calculator.  He
>> explicitly
>> mentions that the link's ground cable is not to be connected.  That
>means
>> that 5v on the red wire (relative to to the calc ground) isn't
>necessarily
>> 5v relative to the RTLink's ground.
>>
>> Second, the white wire is connected directly to battery negative ??
>Doesn't
>> that make it kind of hard to send half of the bits and ack the other
>half?
>> I don't see how the RTLink can ack any bits received from the calc.
>>
>> Third, well, I forget what the third was, but last I knew there was no
>> working
>> radio link (other than perhaps Grants, but I haven't heard of anyone
>else
>> who has successfully built that).  Is this one of the hoax plans, or
>does
>> this thing really work?
>>
>> DK
>>
>>
>>
>
>==
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