Triumph-Adler 81, EC 11

Serial Number 202412 (shift back open and look at side), made in England
Accessories Pouch, quite worn

220V AC power supply
Condition Average. The "TRIUMPH 81" label can hardly be read. Aluminum casing heavily worn on the backside
Acquired 30.8.2002

Serial Number 214716 (shift back open and look at left side), made in England
Accessories Very sturdy leather pouch

220V AC power supply

Quick reference card, plastic
Condition Absolutely excellent! However, the unit does not work with the power supply, only with batteries. This may be caused by one of the three contacts at the top edge of the unit which broke off.
Acquired 31.1.2004
Type, Precision, Input Mode Simple, 8 digits, no exponent, Algebraic
Programmable No
Memory 1 summation register, not permanent
Display 9 digit 7 segment green LED, one digit for sign/error display
Special features Cryptic behaviour!!
Original Pricing, Production 1973 or 1974, approx. 100 Euro, England, Triumph-Adler Nürnberg, Germany
Batteries 3x AA
Dimensions Length 11.9cm, Width 6.9cm, Height 2.5cm
Comment Very old, very simple, strange behaviour of the + and - keys. Cool design!
It was made by Sumlock Anita and sold in the UK as the Anita 811. Also, there was an Anita 810. Information and pictures courtesy of Simon Southwell. See his Java emulator of the Anita 810/811.
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