Timer

Timer

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Description
The Physical Sciences Study Committee (PSSC) used simple ticker tape timers to measure small intervals of time. The form was introduced in the late 1950s, and remained in use for 50 years. This example has a small aluminum battery holder marked: KEYSTONE ELECTRONICS N.Y. 12, N.Y. No. 176
Ref: PSSC, Physics Laboratory Guide (1960), p. 10 (photo of two boys using a ticker tape timer); p. 42 (photo of timer with dynamic cart).
Macalaster Scientific Company, Catalog (1971-1972), p. 13 (for recording timer)
Central Scientific Company, Educational Catalog (1974), p. 48 (for recording timer)
Location
Currently not on view
Object Name
Ticker Tape Timer
Date made
ca. 1960
maker
Physical Science Study Committee
Measurements
overall; timer: 2 1/4 in x 7 in x 3 1/4 in; 5.715 cm x 17.78 cm x 8.255 cm
overall; timer: 2 1/8 in x 7 in x 3 1/4 in; 5.3975 cm x 17.78 cm x 8.255 cm
overall; tape: 1/2 in x 3 3/8 in; 1.27 cm x 8.5725 cm
ID Number
2007.0043.06
accession number
2007.0043
catalog number
2007.0043.06
Credit Line
Gift of Uri Haber-Schaim
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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