Manufacturer: OLYMPIA
Model: ICR412
AKA: M71
Year: 1970
Display: Nixie Tubes (12)
Circuits: Bipolar ICs:
PHILCO +
MATSUSHITA (155)
or...
PHILCO + SIGNETICS (151) 
Dimensions: 352x305x110 mm
Power type: 220V
Origin: Japan
S/N: -
Owner: DEVIDTS Serge
Info: Probably made by 
PANASONIC (MATSUSHITA)
for OLYMPIA

This machine is almost identical to the OLYMPIA: CD400
with the execption of 16 extra IC's and a 24 digits capacity.

 

Nixie Tubes detail ^
This model is unusual in that it has a 12-digit display, with a special key on the keyboard
that displays the remaining digits of any result that is larger than 12 digits when pressed,
note the 13-24 marks above the display.

 

Delay Line label ^
0.4 mm diameter x 143.5 cm length,
5 registers holding 26 x 4 Bit = 520 Bit info.
Speed: 2900 m/s
A 5-register capacity needs 506.7 µs to walk through the Delay-line.

 

Arrow lights up by input beyond 12 digits ^


Arrow lights up when the display is showing ^
the remaining numbers (after the first 12 digits).

Show digit 1-12 or 13-24 ^

Put in memory ^

Memory Call ^

'Add results (approached with the [=] key) to memory'-switch ^


'Number of decimals'-switch ^
By pressing this switch, selecting a number
on the keyboard, subsequently depressing it.

 

Internal Prints:
Detail of print 1

Detail of print 2

Detail of print 3

Detail of print 4

 

Label on the back ^