[TriEmbed] name that title (& Monday reminder)

Pete Soper pete at soper.us
Fri Mar 10 12:52:47 CST 2017



On 03/10/2017 12:54 PM, Brian via TriEmbed wrote:
> Anybody else notice that the "pulley system" for the PNP diagram is 
> mechanically wrong?  A single pulley like that would have the E-C door 
> /closing/ as the E-B door opened.  Not to mention the magical 
> semi-rigid string that can transmit a compressing force...
Good catch! I only have access to the 3rd edition. Does somebody have 
the 4th edition to say whether it's been fixed? Looking up the figure 
using Mike's link only shows the bottom few characters of the figure for me.

Maybe they figure gravity will obviate the need for a compressible 
string if you hold the book upright.  :-)

Also, the bias springs in the 3rd edition are drawn like the type that 
would resist tension but obviously need to be resisting compression.  
And what is the little black knob on the end of the NPN's base door 
supposed to be?

What's to keep the CE junction "trap door" for the PNP being so far up 
that the connection to the base door is via rigid rod (hinged on both 
ends)? If I redraw it this way the notion of emitter current being 
shared by both base and collector is preserved, so I wonder what led 
them to even use a pulley (without thinking it through)?

I can't bring myself to rip off this drawing, but making improved 
versions seems very OK at the moment.

-Pete

>
> XD
>
> -B
>
>
> On 03/10/2017 12:14 PM, Pete Soper via TriEmbed wrote:
>> Too funny. The horrible images.googlee.com graphic I was looking at made
>> me guess it was many decades old. But it's on Page 436 of the third
>> edition copy. That's just exactly what was after. THANKS!
>> -Pete
>>
>> On 03/10/2017 11:59 AM, Mike Lisanke wrote:
>>> Look's like
>>>
>>> https://books.google.com/books?id=lhSCCwAAQBAJ&q=NPN+Water+Analogy&dq=NPN+Water+Analogy&hl=en&sa=X&ved=0ahUKEwjFruWdtMzSAhWIWSYKHdYECQYQ6AEIHDAA 
>>>
>>>
>>>
>>>   Practical Electronics for Inventors, Fourth Edition
>>>
>>>
>>> On Fri, Mar 10, 2017 at 11:40 AM, Pete Soper via TriEmbed
>>> <triembed at triembed.org <mailto:triembed at triembed.org>> wrote:
>>>
>>>     Can anybody help me identify the book this explanation of junction
>>>     transistors comes from?
>>>
>>> http://web.mnstate.edu/lindaas/explore/docs/Transistor2.pdf
>>> <http://web.mnstate.edu/lindaas/explore/docs/Transistor2.pdf>
>>>
>>>     Thanks,
>>>     Pete
>>>     PS Meeting Monday: See "March 13" blog page at http://TriEmbed.org
>>>
>>>     _______________________________________________
>>>     Triangle, NC Embedded Computing mailing list
>>>     TriEmbed at triembed.org <mailto:TriEmbed at triembed.org>
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>>>     TriEmbed web site: http://TriEmbed.org
>>>
>>>
>>>
>>>
>>> -- 
>>> Best regards,  Mike
>>
>>
>>
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>
>
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