Vintage scientific calculator Texas Instruments T1-30
C$22
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Texas Scientific Calculator from 1976
Excellent shape, works well!
Comes with case, which has a couple of water marks on it
Also has rechargeable battery, but I don’t know how to charge it.
Works just as well with a 9 volt battery as seen in video.
Technical details:
Display is 8 digits, red LED.
Four function, memory, scientific functions.
Integrated circuit - Texas Instruments TMC0981.
78 x 146 x 35 mm (4.0" x 6.25" x 1.25").
Made in various countries including USA and Italy.
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