Toko TD-802D Handheld Electronic Calculator

Object Details

Description

According to the Toko, Inc., website, Toko was established in Tokyo in 1955 as a manufacturer of components for portable radios with the name TOKO Radio Coil Laboratories. The firm continues to manufacture electronic components.

This relatively large handheld electronic calculator has a plastic case and eighteen square keys with rounded corners. These include ten digit keys, a decimal point key, a total key, four arithmetic function keys, a clear entry key, and a clear key. A switch on the right of the top row of keys can be set to having the constant (K) on or off. Behind this is an on/off switch. Test left of it reads: TOKO MINI-8. Behind this is an eight-digit green vacuum fluorescent display. A jack for a power adapter is on the right side.

At the base of the back is a compartment for four AA batteries. A mark on the cover reads: JAPAN. A sticker above the compartment gives “CALCULATION EXAMPLES.” Text at the base of the sticker reads: TD-802D SERIAL No. 834181. The back is held to the front by four metal screws. Unscrewing these, one finds a Texas Instruments chip marked: TMS0101ANCΔ (/) 7351.

No advertisements found.

References:

Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 161.

Toko, Inc., website, accessed June 3, 2015.

Location

Currently not on view

Credit Line

Gift of John B. Priser

ca 1973

ID Number

1986.0988.082

catalog number

1986.0988.082

accession number

1986.0988

Object Name

electronic calculator

Other Terms

electronic calculator; Handheld

Physical Description

plastic (case; keys; display cover material)

metal (circuitry material)

paper (sticker; key stickers material)

Measurements

overall: 1 1/4 in x 3 1/2 in x 5 7/8 in; 3.175 cm x 8.89 cm x 14.9225 cm

place made

Japan

See more items in

Medicine and Science: Computers

Computers & Business Machines

Handheld Electronic Calculators

National Museum of American History

Record ID

nmah_334496

Metadata Usage (text)

CC0

GUID (Link to Original Record)

https://n2t.net/ark:/65665/ng49ca746a1-3736-704b-e053-15f76fa0b4fa