Hand-held Calculators

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Texas Instruments TI-30

TI-30

Texas Instruments TI-30.

Distinctive features: A popular, low-cost model.

Technical details:
Display is 8 digits, red LED.

Four function, memory, scientific functions.

Integrated circuit - Texas Instruments TMC0981.

9v (PP3 battery).

78 x 146 x 35 mm (4.0" x 6.25" x 1.25").

Made in various countries including USA and Italy.

Inside

Inside howing the circuit board with just the TMC0981 integrated circuit and the LED display.

Note how this calculator retains the case shape that Texas Instruments had been using for the last few years and with the shrinking size of the electronics it does not make very efficient use of space.

Texas Instruments started research into portable calculators in 1966 with the "Caltech" project, and went on to supply calculator electronics components to many companies. In 1972 it started to market it own calculator, the TI-2500 Datamath, which was the first of many models.
By 1977 it was possible to include scientific functions and memory in a basic calculator, all based on a single LSI integrated circuit. The TI-30 was among the most popular of all LED calculators and was manufactured into the 1980s. The cost in 1977 was US$24.95 [about 14.60 GBP].
Texas Instruments is one of the few early manufacturers which is still in the calculator market.

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Hand-held Calculators

TI Cal-Tech
Canon Pocketronic
Sanyo ICC-0081 & ICC-82D
Sharp QT-8B
Busicom LE-120A & LE-120S
Sharp EL-8 & Facit 1111
Minolta Minolcom
Brother PRO-CAL 408
Walther ETR3
Bowmar 901B
Ragen Microelectronic
Compucorp 324G
Sharp EL-811 & derivatives
Royal Digital III & IV
Busicom LE-100A handy
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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
Olivetti Divisumma 18
Iain Jones International Mini A
Hewlett-Packard HP80
Litronix Checkmate
Heathkit IC-2009
MITS 150
Summit Ko9V, K16 & SE88M
Unicom 102
Victor 85 "Tallymate"
Elka 101
RFT minirex 75
Sharp EL-120
Sharp EL-805
Bowmar MX-55
Atlas-Rand, Berkey, & Keystone
Hewlett-Packard HP-65
Casio fx-10
Calcu-pen
Casio AL-8 & family models
Commodore 776M & 796M
Novus 650 "Mathbox"
Rockwell 8R
General Instrument EZ3000
Check, billfold, wallet calculators
Monte Carlo
Texas Instruments Spirit of '76
Pulsar Calculator Watch
Compuchron Calculator Watch
Adler Lady & Sir
Elektronika B3-18A & C3-15
Speech+
Commodore S61
"Standard Type 1"
Sharp EL-8026
Texas Instruments TI-30
Canon Multi 8
Casio ST1
Wrist Calculators
Kosmos I & Kosmos Astro
Hanimex Calculator-Recorder
Navigation Calculators
TI58 Special Function Calculators
Sandvik 842S Coromant
"Standard Type 2"
Panasonic Electronic Ruler
Teal Photon
Casio Mini Card LC-78
Feet & inches calculators
SCAT Specialist Calculators
Sharp EL-826
Sharp EL-825
Sanyo CX-1
Elektronika MK-33 etc
Sharp PC1211/Tandy TRS80 PC1
Curta
Slide Rule
Otis King L

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