Details:

Apart from some little damage on the  bottom the calculator housing is in nice condition. It also is fully functional, but unfortunately the Dynamic Scattering LCD display is missing some of its least significant digits.  According to information found elsewhere this is the first commercially applied LCD in calculators.  Digits of these LCD’s become milky  when activated .  To achieve clearly  visible digits this type of LCD needs to be lit from the backside. In this calculator a small 6V bulb is mounted.

In a close-up of the display it seems that some digits leaked the fluid crystals into their surroundings.

For more information regarding the used LCD have a look in Wikipedia.

The calculator runs on four D-cells or with the the associated 6V power supply.

Usage:

Addition, Subtraction, Multiplication and Division:

 Works as usual today.  There is no memory.

Function of other keys, switches etc.:

• The ‘ON’-key switches power on and also opens the display cover.

Click to view a full size picture (opens in a new tab)

Serial number:

Built in:

Functions:

Market-introduction:

Production until:

Price:

175425

1972 (Contains IC’s with code 7240)

Addition, Subtraction, Multiplication,  Division

1972

1973?

Approx.  $200  (equals about DM 320/Fl.320 in 1972)