Additional Pictures 


The internal  construction of the TI-1798 is known from the BA-20.
Please notice the TI-1796 designation on the PCB. 

The first BA-20 Profit Manager makes use of a small 
clock module with its own battery. 

This BA-20 manufactured in 2002 looks still similiar but lacks the clock
and battery. Even the Printed Circuit Board (PCB) makes use of an
Integrated Circuit in a traditional housing.

horizontal rule

If you have additions to the above article please email:

Joerg Woerner, September 26, 2004. No reprints without written permission.