Triumph-Adler 88T, EC 25/EC25A

Serial number EC25: 68.610.401
Accessories Bedienungsanleitung (German, English, French, Italiano), with punch holes
Condition Excellent! The power switch has a minor contact problem.
The back side shows normal wear and a "EM" sign scratched into the aluminium
Acquired 16.11.2002

Serial number EC25A: 68 673.???
Accessories Pouch
Condition Very good.
Acquired 8.10.2003

Serial number EC25: 68.608.444/RO.
Accessories Pouch, NiCd battery and charger (220 V AC)
Condition Very good.
Acquired 18.7.2005, courtesy of Mr. Rudi Oswald
Type, Precision, Input mode Scientific, 8 BCD digits, no exponent, Algebraic
Programmable No
Memory 1 register, not permanent
Display 9 digit 7 segment red LED, one digit for sign/error display
Special features Scientific functions (sin, exp, log etc.) but no exponential notation!
Original Pricing, Production Unknown, TA-Vertriebs GmbH, 8500 Nürnberg
Batteries 4x AAA. EC25: no power supply, EC25A: Regular DC 6V off-the-shelf power supply, minus on center
Dimensions Length 11.8cm, Width 7.4cm, Height 2.1cm
Comment The "DR" (Display recall) key restores the previous display content if it was lost by pressing a number key. Apparently, the intention was to provide a correction method if user forgot to press the "f" prefix key before one of the math functions located on the number keys.
"CM" clears the memory register.
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