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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HP 20S: Acoustics Programs

HP 20S: Acoustics Programs Program A: Speed of Sound in Dry Air cs = 20.05 × √(273.15 + T°C) Code: 01: 61, 41, A: LBL A 02: ...