Anita 811 & Adler 81 Calculators




	Anita Hand-held Calculators Anita 811, Adler 81 & Triumph 81

	The ANITA 811 was the first hand-held electronic ANITA calculator. Versions of this calculator were also supplied to the Litton Industries subsidiary TA Vertriebs, of Germany, as its Adler 81 and Triumph 81 models, as shown below.

		ANITA 811

Anita 811, Adler 81 (Type EC11) & Triumph 81

Display is 8 digits, red LED.

4 functions, %, memory.

4.5v (3x AA batteries).

69 mm x 118 mm x 24 mm (2.8" x 4.7" x 1").

Anita 811 label:
Sumlock Comptometer Ltd,
Uxbridge, Middlesex.
Made in England.

Introduced 1972, price £75 [about $175].

The switch position "5/4" on the Adler is the same as that marked with a semi-circle on the Anita, and indicates that the answer will be rounded to 2 decimal places.

There is an operating manual for this machine in the Operating Manuals & Leaflets section.

This was the first Anita hand-held calculator put on sale. The story of the development of the Anita 811 and the version for Triumph-Adler is described in "The Rockwell Connection" on this site.

The picture on the left demonstrates how the rear aluminium cover slides up to replace the batteries, which is common to all models of this series.

Note that the model illustrated here is a variety with a white painted rear cover.

Advertisement for the Anita 811.

Note the Anita logo in the centre which was in use around this time.


	The Anita 811 on the left, from the Vintage Calculators Web Museum calculator photo library, has a different style of keyboard and may be a prototype. If you have any information about this please get in touch.