Atlas R300
Brother Procal 508AY
Casio FX-795P Pocket Computer
Casio PC FX-730P
Konkret 100
Olympia CD60
Privileg LC 10000 Super Timer
Psion 5 MX Pro
Psion 5 MX Pro
Sharp PC-1401
SHARP Pocket Computer PC-1246S
SHARP Pocket Computer PC-1270
SHARP Pocket Computer PC-1403H
SR1 (Schulrechner1)
Texas Instruments SR-10
Texas Instruments TI 1750

Texas Instruments SR-10
Texas Instruments, 1972
Semi-scientific Slide Rule functions., 3.6v (3x AA rechargeable cells)., 76 x 158 x 37 mm
Made in U.S.A.
Introduced in November 1972, with a direct mail price of US$149.95.
The Texas Instruments SR-10 has semi-scientific functions, comparable to the capabilities of a mechanical slide rule, though initially at about ten times the cost. There followed from Texas Instruments, and many other companies, more models of electronic slide rules, with increasing capability and reducing price until within a couple of years the mechanical slide rule became obsolete.