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Additional Pictures 

 

This IMCO MudMod calculator was manufactured in February 1982 by
Texas Instruments in Abilene, TX (Date code ATA 0782 wk 07 yr 1982).

The IMCO MudMod module.

Inside the module we located
a standard TMC0540 with a 
CD5691 ROM-Code.


horizontal rule

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

Joerg Woerner, April 3, 2021. No reprints without written permission.