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Ajax

Ajax

Ajax was a trade name for the calculators marketed by Acme Electric (Finsbury) Ltd.
There is little information available about this company though some calculators were manufactured by Advanced Telecommunications Equipment (ATE) of Woking, Engand, which was linked with Radofin, whereas the 2500 (below) was made in Hong Kong.

Known models:

AJAX

Ajax

Ajax

Power source - PP3 replaceable battery.

Display is 8 digits, red LED.

4-functions, %.

66 x 126 x 22 mm (2.6" x 5.0" x 0.9").

Country of manufacture unknown.

AJAX 99

Ajax 99

Ajax 99

Power source - PP3 replaceable battery.

Display is 8 digits, red LED.

4-functions, %, memory.

68 x 132 x 23 mm (2.7" x 5.2" x 0.9").

Made in  Hong Kong.

Model number on the carton, not on the calculator.

AJAX 2500

Ajax 2500

Ajax 2500

Power source - 4 AA replaceable batteries.

Display is 8 digits, red LED.

4-functions, %, memory.

78 x 139 x 37 mm. (3.1" x 5.5" x 1.5").

Made in  Hong Kong.

Made exclusively for Acme Electric (Finsbury) Ltd.

Cost £9.85.

Ajax 2500 with box

Litronix 1100

Litronix 1100
Rear

Litronix 1100

Power source - 3 AA replaceable batteries.

Display is 8 digits, red LED.

4-functions, fixed decimal point switchable to 2 and 4 decimal places.

74 x 150 x 20 mm. (2.9" x 5.9" x 0.8").

The label on the back says:
"A PRODUCT OF AMERICAN SPACE AGE TECHNOLOGY. ASSEMBLED IN MALAYSIA FOR :
ACME ELECTRIC CO. LTD., LONDON"

This is a Litronix calculator marked for distribution by Ajax.

Vintage Calculators

© Text & photographs copyright Nigel Tout   2000-2017  except where noted otherwise.