On 08/24/2013 01:02 PM, Norman Jaffe wrote:
The research that I did indicated that the BP-8 was,
in fact, 9V, and
my TI Programmer calculator works fine with a 9V battery. The
external power connector goes to the circuit board, where it charges
the two AA cells - this may be the cause of the confusion, since the
internal batteries are up-converted to 9V and the wall-wart doesn't
power the calculator directly itself.
Toldja so--were I and Fred the only ones who laid out for these things
back when they were new? The Nicad pack didn't keep you going for very
long, so you supplemented it with transistor radio batteries.
Honest, the thing was a pig for power.
--Chuck