ANITA Electronic Hand-held Calculators
Known ANITA electronic hand-held calculators made by Sumlock Anita (models not made by Rockwell).
- ANITA 810 - 4-function.
- ANITA 811 - 4-function, %, memory - The first ANITA hand-held calculator.
- ANITA 811 "slim-line" - 4-function, %, memory (may be a prototype).
- ANITA 831 - 4-function, %, memory, square root.
- ANITA 841 - Scientific.
- ANITA 851 - 4-function, metric conversion.
- ANITA 861 - Financial.
The following models look very similar to these Sumlock Anita hand-held calculators but were marketed by or manufactured by other companies. They are dealt with separately in the section Models Derived from ANITA Calculators.
- Adler 81
- Adler 85
- ANITA 8011
- ANITA 8031
- ANITA 8041
- ANITA 8061
- M.P. ALAS 861
- minitron 811
- minitron 811B
- minitron 831B
- minitron 841
- Triumph 81
The ANITA AC Adaptor is also included here since it has the unusual feature of a switch which allows it to power a calculator from the AC supply while it is fitted with disposable, non-rechargeable, batteries.
Click on a picture below for more details and more, bigger, pictures.
The first ANITA hand-held calculator.
Simon Southwell has produced fascinating simulations of some of the ANITA calculators at http://www.lyvedon-way.fsnet.co.uk/calc/CALC.HTM.
Pop
one up and have a go, but don't forget to switch it on first.
The Bell Punch Company & the Development of the Anita Calculator
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Text & photographs copyright © 2002 - 2023 Nigel Tout, except where noted otherwise.