Precision, Input Mode
|Simple, 8 digits, no exponent,
|One summation register on the
2LF unit. It can be accessed using the "M" prefix key. A small dot is
lit on the left side of the display if the register is non-zero.
|9 digit 7-segment red LED.
According to the "Collection Lütjens" the was 2LF version was
initially built with 4+5 digit LED segments from HP which had a small
visible space between the 4th and 5th digit. Later units (and the unit
pictured above) used 3+3+3 digit LED segments from Litronix.
|Instruction sheet on the back of
|Unknown, approx. 1973-1975,
Dennert & Pape, Hamburg
|3x AA or DC power supply, 4.5V,
minus on center
Only rechargeable batteries may be used together with a power supply!
Important: The power switch turns on
operation. In case there are no batteries the power switch must be in
"0" position to actually turn on the unit!
|Length 15cm, Width 6cm, Height
|Not much functionality but a