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Additional Pictures 

 

This original TI-2500B uses either
3 rechargable AA-size cells or
4 alkaline cells. A small switch
(under lower cells) selects the
charging/ non-charging mode.

The first production batch of the 
TI-2500B manufactured in Spain
kept the switch.

Phillipe Leckler 

This TI-2500B manufactured in
Spain misses one battery place
and the switch in the battery
 compartment.
Gordon Dyer 

This TI-2510 uses 4 AA-sized
alkaline or carbon-zinc batteries.
The switch in the battery com-
partment is missing, too.

This TI-2511 uses 4 AA-sized
alkaline or carbon-zinc batteries.
The switch in the battery com-
partment is missing, too.


horizontal rule

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

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