YouTube

 

   

SR 51 AModel: SR-51 A
Battery: BP 1 
Adapter: AC9130
Year: 1976
Chip: TMC0501 / 522 / 523             
Info: classic second GENERATION

 


 


 

SR 51 AModel: SR-51 A
Battery: BP 1 
Adapter: AC9130
Year: 1976
Chip: TMC0501 / 522 / 523             
Info: This calculator has the 4 keys for BLUE operations is it a prototype or a fake?

 

 

 


 

SR 51 IIModel: SR-51 II
Battery: BP 6
Adapter: AC9131
Year: 1977
Chip: TMC0501 / 581
Manual: with permission www.datamath.org
           

Info: MAJESTIC line 

 

 


 

SR 52Model: SR-52
Battery: 3 x AA
Adapter: AC9130A or DC9105
Year: 1975
Chip: TMC0501 / 0524 /0595 / 2xTMC0599, 2xTMC0561/0562
Manual: with permission www.datamath.org
  basic library
      
   

Info: classic second GENERATION 

 

 


 

SR 0052 clearModel: SR-52 clear case
Battery: 3 x AA
Adapter: AC9130A 
Year: 1976
Chip: TMC0501, TMS0537, TMC0538, TMC0599           
Info: This SR-52 Clear-Clase Prototype was most likely manufactured in November 1974 and is a strange hybrid sporting.