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Some intersting TI engineering samples?


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#1 Mitkraft OFFLINE  

Mitkraft

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Posted Wed Feb 27, 2019 4:59 PM

I got these a while back from my uncle who worked for TI BITD.  I keep meaning to go through them and see what I want to keep and to sell but never getting around to it.  I haven't opened up the box since nearly a year ago when I took these pics.  Just came across the pictures and thought I'd share here and see what you guys thought.

 

The largest of the wafers is like 10" if I remember correctly.

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#2 Mitkraft OFFLINE  

Mitkraft

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Posted Tue Mar 5, 2019 11:39 AM

I'll be honest.  I have very little idea of exactly that any of this stuff is.  Can anybody shed any light on it?



#3 HOME AUTOMATION OFFLINE  

HOME AUTOMATION

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Posted Tue Mar 5, 2019 11:45 AM

I wish I had a Silicon plant! ...and long overdo too.



#4 FarmerPotato OFFLINE  

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Posted Tue Mar 5, 2019 1:07 PM

I'll be honest.  I have very little idea of exactly that any of this stuff is.  Can anybody shed any light on it?

The purple ceramic chips with windows are common EPROMs. The 2532s are the largest there, and  still have practical replacement use  in TI-99/4A peripherals.

 

The board with the white chip: probably some kind of industrial controller.

The white chip with gold pins looks like a TMS9900 cpu: http://www.wikiwand....ruments_TMS9900

 

I don't think the board is from a computer series (like TM990) because it has no card edge, but I could be wrong.

 

Most of the CPU lines seem to be buffered to the 50-pin connector at the right edge. Probably this connected to another board, hopefully one with memory on it, because I don't see any RAM or EPROM here.

The 50-pin connector on the left edge goes through a lot of line drivers and buffers, so it is probably an interface to external signals.

 

Thanks for sharing these photos.






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