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SR 16Model: SR-16
Battery: 3  x AA ni-cd
Adapter: AC9200
Year: 1975
Chip: TMC1001
Manual: with permission www.datamath.org
Info: TIP line -  classic first GENERATION 

 

 

 


 

SR 16 IIModel: SR-16 II
Battery: 3 x AA
Adapter: AC8190
Year: 1975
Chip: TMC1016
Info: classic second GENERATION 

 

 

 


 

SR 20Model: SR-20
Battery: 
Adapter: AC 110 volt
Year: 1973
Chip: TMS02020, TMS0304
Manual: with permission www.datamath.org
   

Info: DESKTOP line 

 

 


 

SR 0022SR 0022 02SR 0022 01Model: SR-22
Battery:  no
Adapter: AC9222
Year: 1974
Chip: TMS0207, TMC0323, TMC0404   
Info: Look carefully at the display of the SR-22 and you'll notice immediately that this calculator could perform amazing calculations. It is the only calculator reported so far to perform Octal-Decimal-Hexadecimal conversions on the base of floating point numbers.

 

 

 


 

SR 40Model: SR-40
Battery: BP 5
Adapter: AC9132
Year: 1976
Chip: TMC0981
Manual: with permission www.datamath.org
           

Info: MAJESTIC line