Texas Instruments TI SR-51A

Serial Number	3676RCI (hard to read): 36th week, 1976, Rieti, Italy.
Accessories	Pouch
	Texas Instruments SR-51A Handbuch (German)
	Texas Instruments super slide-rule calculator AR-51A Operating Guide
	Built-in battery pack with dead batteries
Condition	Extremely poor! Lots of scratches around the ON switch, golden frame worn off, keyboard dirty (but cleanable), three rubber feet missing, back label unreadable
Acquired	15.9.2002

Type, Precision, Input Mode	Scientific, 10 BCD digits, exponent ±99, Algebraic
Programmable	No
Memory	3 storage registers (1, 2, 3), not permanent
Display
Special features
Original Pricing, Prduction	Introduced June 1975 for $224.95 (according to the Datamath Museum). DM 348 in 1976 (according to Kurt Pribil).
Batteries	Built-in battery pack, external power supply 4.5V (plus on center)
Dimensions
Links	Datamath Museum
Comment