Bowmar 901C

Date of introduction:  1972 Display technology:  LED-stick
New price:   Display size:  8
Size:  5.3" x 3.1" x 1.4"    
Weight:  10.3 ounces Serial No:  43657
Batteries:  6*AA Date of manufacture:  mth 08 year 1972
AC-Adapter:  7.2V 225mA DC, 7.0V 45mA AC Origin of manufacture:  Canada
Precision:  8 Integrated circuits:  TMS0103
Program steps:   Courtesy of:  Frank Boehm

This Bowmar 901C looks 100% identical to the earlier 901B. We don't now the meaning of the "C" in the nameplate and suggest three possibilities:

It was manufactured in Canada 
It was Cost reduced
It shares components with both the Craig 4501 and the Commodore Minuteman 1

901C_Display.jpg (65893 Byte)Usually dismantling a calculator reveals a lot of information but this Bowmar 901C kept his secrets. It looks identical to the other known types. 

Dear fellow collector - if you have any additional information about this 901C, please drop me a line.

Bowmar Instruments was one of the first casualties of the Calculator Wars and filed in 1976 for bankruptcy. Don't miss a mystery calculator with the Bowmar brand introduced in 1977!

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If you have additions to the above article please email:

Joerg Woerner, September 29, 2003. No reprints without written permission.