APF Mark V Handheld Electronic Calculator
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Object Details
- APF Electronics
- Description
- This relatively early, relatively large, handheld electronic calculator has an array of nine digit keys with a zero bar and a decimal point key below. To the right are clear entry, clear, multiplication, division, addition, and subtraction keys, as well as an equals bar. Sliding the on/off switch to the on position opens a window to reveal the eight-digit fluoresent tube display.
- A mark at the top front reads: aPF Mark V. A metal plaque on the back has the title: OPERATING INSTRUCTIONS. It reads in the bottom right: JAPAN. A mark scratched below the plaque reads: M. R. (/) Williams. A sticker attached to the cover for the batteries reads: A.P.F. ELECTRONICS, INC. (/) MODEL NO. MARK-V (/) D.C. 6.0 VOLTS (4 TYPE C-CELLS) (/) CAUTION - USE ONLY MODEL (/) M5 AC ADAPTOR (/) SERIAL No. 27680 JAPAN.
- The microprocessor inside the calculator is marked: TMS0101ANC[delta] (/) 7305. this indicates that the chip was made in the fifth week of 1973. It also has the logo of Texas Instruments. A mark on the back of the circuit board reads: MODEL PB-5001 E46473. A mark on the fluorescent tube reads: Toshiba (/) 6520 (/) . . .
- A 1973 advertisement in the New York Times lists the calculator as selling, with power adapter, for $79.95. This example has no power adapter.
- Reference:
- New York Times, May 6, 1973, p. 46.
- Location
- Currently not on view
- Credit Line
- Gift of Michael R. Williams
- ca 1973
- ID Number
- 1989.0047.01
- catalog number
- 1989.0047.01
- accession number
- 1989.0047
- Object Name
- electronic calculator
- Physical Description
- plastic (case; keys material)
- aluminum (fittings material)
- metal, plastic (circuits material)
- Measurements
- average spatial: 3.8 cm x 12.2 cm x 19 cm; 1 1/2 in x 4 13/16 in x 7 15/32 in
- place made
- Japan
- See more items in
- Medicine and Science: Mathematics
- Computers & Business Machines
- Handheld Electronic Calculators
- National Museum of American History
- Record ID
- nmah_1064479
- Metadata Usage (text)
- CC0
- GUID (Link to Original Record)
- http://n2t.net/ark:/65665/ng49ca746a9-0f14-704b-e053-15f76fa0b4fa
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