Calculator Collection
TI Department

I am not a fan of Texas Instruments calculators. They seem like cheap toys
compared to HP's contemporary offerings - but they are an important
part of calculator history. These are some examples I have picked up over time.
If you would like to add them to your collection, any trade offer involving HP
components will likely be accepted... 

  TI-2500B "Datamath"   First TI LED model, c.1972.    
SR-11    Scientific notation & square root function; c.1974   

   SR-50  One of the first scientific-function models, c.1974.   

    TI-30   Inexpensive scientific, c.1976. Case & manual included.   

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