Olympia CD400

Details:

The CD400 was build for Olympia by a Japanese  company.  A rather unique design aspect is the usage of an  acoustic  delay-line memory.  This type of memory was shortly in use for this kind of purpose.  The keys activate reed-switches. This was a common approach in the early days of electronic calculators.   


For its design Olympia received the IF Design Award 1971


Usage:

Addition/subtraction:

Use the “+=” and “-=” key.  Using the circled version stores the result in memory.


Multiplication:

Enter 1st number, push the “X”-key, enter the 2nd number, push the “+=” key.

To add the result to memory use the circled “+=” key


Division:           

Enter 1st number, push the “:”-key, enter the 2nd number, push the “-=” key.

To add the result to memory use the circled “-=” key



Function of some keys, switches etc.


Calculator Info Repair information & pictures of internals
P1000399s.jpg P1000394s.jpg P1000395s.jpg
P1000416s.jpg P1000414s.jpg

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Assets: adverts, brochures, etc

Serial number:

Build in:

Functions:

Power:

Market-introduction:

Production until:

Price:


0209-10777

Probably mid 1970 (regarding prints on IC’s)

Addition, Subtraction, Multiplication, Division

220V

1970

1972

DM. 2150 in 1971/1972    (Source: Büromaschinen Lexikon)