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RFT MR610

Date of introduction:  1978 Display technology:  LCD (yellow)
New price:   Display size:  8 + 2
Size:  5.6" x 2.8" x 0.4"    
Weight:  2.9 ounces Serial No:  (Q1) 024425
Batteries:  2*LR44  Date of manufacture:  
AC-Adapter:   Origin of manufacture:  GDR
Precision:  9 Integrated circuits:  Toshiba T3636
Memories:  1    
Program steps:   Courtesy of:  Dirk Bergmann

You are familiar with this MR610 produced by the former GDR based company RFT ? You are right, this is a perfect copy of the early Toshiba SLC-8300. Recently a version of the MR610 sporting a yellow LCD was reported.
Read more about RFT's calculator exports here.

Compare the perfection of the copy of the internals with the attached pictures. You'll find the MR610 always on the left side and the Toshiba SLC-8300 on the right side of the pictures.

MR610_CMP.jpg (199376 Byte)

The keyboard insulation foil and the rubber mat with the conductive switches. The rubebr mat seems to be identical. MR610_KBD.jpg (267488 Byte)
The LC-display manufactured by EPSON, the polarizers and display frames.

MR610_LCD.jpg (38855 Byte)

The printed circuit board with the Toshiba T3636 calculator IC's. MR610_PCB.jpg (417420 Byte)

 


If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, July 7, 2002. No reprints without written permission.