Texas Instruments SR-51A

by | Mar 28, 2021 | Vintage TI | 0 comments

The SR-51A scientific calculator is the next step after the short lived SR-51 calculator and it was the high-end calculator in the Texas Instrument line in 1975 together with the lower prices SR-16 and SR-50A. The SR-51A has the same functionality as the SR-51.

The calculator uses a BP-1 battery pack like this one which can be easily refurbished with 3 * AA rechargeable batteries.

The calculator comes together with its protective soft case (which shows some wear) and the user’s manual.

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