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 ``` W*D*H = 9_3/4" * 8_1/4" * 3_1/2" Weight (ca.) = 4_2/3 lbs = 2.1 kg = 25 cm * 21 cm * 9 cm SN = 42787 -------------------------------------------------------------------- T H A L E S - W E R K Rastatt / Baden Germany (1960) Historical Remarks ... The NEW VERION has a PLASTIC COVER ( Old = Metall ), a LEFT LEVER to clear the Arithmetic Unit ( Old = Wheel ), MAIN LEVER on right side ( Old = left/right choice ) and NO COUNTER. HOW TO A D D & S U B T R A C T with this THALES »KA« ==================================================================== Pushing down the left RED LEVER clears the ARITHMETIC UNIT. Pressing the big SILVER KEY clears the INPUT UNIT. The right LEVER ON TOP should be switched backward by default. The LEVER right beside the keyboard should be switched foreward to [+] by default. When an INPUT-KEY, ( eg. [7] ) is pressed, the whole column below [6] ... [1] switches too! Under the KEYBOARD this column forms a BAR with ( eg. 7 ) TEETH. Pressing the right MAIN LEVER down, let the arithmetic unit SLIDE UNDER THE KEYBOARD to add the input value to the content of the arithmetic unit - Releasing the main lever let the arithmetic unit slide back to front and shows the actual content in its DISPLAY WINDOWS - The input unit will be cleared. For REPEATED INPUT VALUES, the LEVER ON TOP has to be set to [R] - the keyboard will not be cleared after operation. For SUBTRACTION the LEVER RIGHT BESIDE THE KEYBOARD has to be set to [-] before the MAIN LEVER is pulled down. R E M A R K S T O R E S T O R A T I O N : ==================================================================== The RUBBER FEET have lost their elasticity and its metal posts have touched the floor. Because all are fixed with rivets, the "Scratch- Problem" was solved by LEATHER PATCHES glued under ... .. The PLASTIC COVER had CRACKS around the SCREW-HOLES. To prevent further damage, a SUPPORT out of CATFOOD-CAN was glued underneath. impressum: ******************************************************************** © C.HAMANN http://public.beuth-hochschule.de/~hamann 07/02/13 ```