Friday, April 4, 2014

Three Generations of the BA II Plus



Here is my collection of the BA II Plus calculators I have with the year I bought them typed into each one.


Eddie
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RPN: HP 42S, DM42, Free 42 Tones, Column Vectors, and Songs

RPN: HP 42S, DM42, Free 42 Tones, Column Vectors, and Songs Making Music of 10 Tones The HP 42S, and subsequently, the Free42 app...