Hand-held Calculators

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Heathkit IC-2009

Heathkit IC-2009

Display is 8 digits, red LED.

4-functions.
The "D" key refreshes the display once it is automatically switched off after about 12 seconds to save the battery.

7.2v (6x AA) rechargeable.

80 x 138 x 43 mm (3" x 5.75" x 0.9").

1973.

Made by Heath Company
Benton Harbor, Michigan.

Cost US$ 94.95 (about £37 Sterling).

Similar to the Bowmar 801B, but with a cheaper case.

With manual

Completed calculator and the Assembly Manual.

Assembly manual

A page from the Assembly Manual.

Inside Heathkit IC-2009

A well finished calculator.

As can be seen above, calculators of this early period still required a large number of components and so assembly costs were considerable.
There were several companies suppling calculator kits, including Sinclair, which gave some cost saving and also the satisfaction of having assembled the calculator oneself (see also the
Advance / Wireless World desk kit calculator).
The kit companies usually had a scheme whereby you could return the calculator for sorting out if it did not work properly !
The Heathkit company produced a large range of electronics kits, and between 1972 and 1976 offered half a dozen hand-held and desktop calculator kits.
Within a few years all there was inside a calculator was the integrated circuit chip, the display, and the keyboard. The assembly cost was very little so kits had no advantage and died out.

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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.