Rockwell ANITA 1216.
Power supply - AC.
Display is 12 digits, amber gas discharge.
4-function, %, memory.
Integrated circuits - Electronic Arrays EA7022 and EA7023, here date coded 1973.
256 mm x 193 mm x 70 mm (10.0" x 7.6" x 2.75").
"Made in U.S.A"
"Rockwell International. Sumlock Anita Ltd. Uxbridge England"
Circuit board has the name of the Cherry company on it.
This Rockwell-Anita calculator is unusual for two reasons:
This could be explained by this model being a Unicom machine relabelled with the ANITA name. Unicom was the trade name of the calculators manufactured by the semiconductor company American Micro-systems Inc. Like Sumlock Anita, Unicom was bought by Rockwell in 1972 which continued to manufacture the Unicom models for a time. See also the Rockwell-ANITA 102 hand-held calculator.
Alternatively, it is also reported that this calculator has similarities to the Summit S1219 calculator, from Summit International Corp, Salt Lake City, Utah, U.S.A. (see http://www.calcuseum.com/ED/desk_38492.html). It could well have been that Summit was contracted by Sumlock-Anita to supply this model, and it this was continued for some time after Rockwell bought Sumlock-Anita.
If you have further information about this calculator please get in touch.
The cover has been removed to reveal the gas-discharge display, at the rear, the two integrated circuits made by Electronic Arrays.
The rear of the circuit board with the Electronic Arrays integrated circuit: EA7022 on the right and EA7023 on the left.
Close up of the Electronic Arrays integrated circuits.
The label on the rear.
Text & photographs copyright © 2002 - 2017 Nigel Tout, except where noted otherwise.