Models Derived from
ANITA Hand-held Calculators
Display is 8 digits, green VFD.
4-function, %, memory.
4.5v (3x AA batteries).
Integrated circuit: [Rockwell] A5501PC (here date coded 1977, week 32)
69 mm x 118 mm x 24 mm (2.8" x 4.7" x 1").
Elektronska industrija-Niš, made in Yugoslavia (now Serbia).
To replace the batteries the rear cover slides up, which also reveals the label which shows:
Ei (Electronics industry) Factory Calculating Machines Niš.
The circuit board showing the A5501PC integrated circuit (here date coded 1977, week 32). This does not have a manufacturer's mark but is clearly of Rockwell heritage and has a Rockwell part number.
The black rectangular block above the integrated circuit is unusual and contains encapsulated discrete components.
Models Derived from Anita Hand-held Calculators
Text & photographs copyright © 2002 - 2017 Nigel Tout, except where noted otherwise.