Hand-held Calculators

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Olympia CD-81
Panasonic JE-855U

Olympia CD 81

Olympia CD 81 /
Panasonic JE-855U

Display is 8 digits in separate green fluorescent tubes.

4-function, memory.

Integrated circuits - Texas Instruments TMS 0131 date coded 7321.

6v (4x AA) or rechargeable battery pack.

98 x 165 x 45 mm (3.9" x 6.5" x 1.75").

Introduced 1972/3.

Made in Japan.

 

The Olympia CD 80 / Panasonic JE-850U is a slightly earlier model without the memory function.

Olympia CD 81

This calculator is quite a handful.

Olympia CD 81battery packs

The rechargeable battery pack (top left) and the disposable battery pack (bottom left). Either clips into the rear of the calculator as desired.

Inside Olympia CD 81

Inside the rear of the calculator.

Note the keyboard - each key has a small magnet to activate a reed-switch mounted on the circuit board.

Inside Olympia CD 81

Inside the calculator with the circuit board and display unplugged.

A fantastic calculator - it exudes style and quality.

Panasonic made a whole family of calculators with similar style features. The later ones are small-sized pocket calculators, but these early ones with their large size look the most stylish.

This model has many high quality (and so expensive features) -

  • The keyboard uses reed-switches activated by magnets on the keys. Being sealed these switches are ultra-reliable having long lives and giving few contact bounce problems.
  • The circuit board and the display are plug-in modules, allowing quick and easy servicing (if necessary).
  • A choice of power source by the use of clip on power packs.
  • Even the recharging unit has its own soft carry case too !
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Hand-held Calculators

Sharp QT-8B
Sanyo ICC-0081 Mini Calculator
Canon Pocketronic
Sharp EL-8 & Facit 1111
Busicom LE-120A & LE-120S
Sanyo ICC-82
Minolta Minolcom
Brother PRO-CAL 408
Bowmar 901B
Ragen Microelectronic
Sharp EL-811 & derivatives
Royal Digital III & IV
Busicom LE-100A handy
Busicom LE-80A handy
Hewlett Packard HP-35
Canon LE-10
Rapidman 800
Texas Instruments 2500
Lloyd's Accumatic 100
Sinclair Executive
Casio Mini
Sanyo ICC-809
Sharp EL-801
Texas Instruments SR-10
Sperry Remington 661D & 661
Olympia CD 81
apf Mark V
Ramsgate M-11
Iain Jones International Mini A
Hewlett-Packard HP80
Heathkit IC-2009
MITS 150
Summit Ko9V, K16 & SE88M
Unicom 102
Victor 85
Elka 101
RFT minirex 75
Sharp EL-120
Sharp EL-805
Bowmar MX-55
Keystone 88 & similar
Hewlett-Packard HP-65
Casio fx-10
Calcu-pen
Casio AL-8 & family models
Commodore 776M & 796M
Novus 650
Rockwell 8R
General Instrument EZ3000
Check, billfold, wallet calculators
Edmund Scientific 1945
Texas Instruments Spirit of '76
Pulsar Calculator Watch
Compuchron Calculator Watch
Adler Lady & Sir
Elektronika C3-15
Speech+
Commodore S61
Sharp EL-8026
Texas Instruments TI-30
Canon Multi 8
Casio ST1
Texas Insturments TI 58
Wrist Calculators
Kosmos I & Kosmos Astro
Hanimex Calculator-Recorder
Navigation Calculators
TI58 Special Function Calculators
Sandvik 842S Coromant
Panasonic Electronic Ruler
Teal Photon
Sharp EL-825
Casio Mini Card LC-78
Feet & inches calculators
Elektronika MK-33
Sharp PC1211/Tandy TRS80 PC1
Curta
Slide Rule
Otis King L

Vintage Calculators

© Text & photographs copyright Nigel Tout  2000-2008 except where noted otherwise.