Slide rule

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OBJECT TYPE
SPECIAL PURPOSE/ENGINEER/CIRCULAR
DATE
1973
ARTIFACT NUMBER
2000.0031.001
MANUFACTURER
PERRYGRAF DIV. OF NASHUA CORP.
MODEL
Unknown
LOCATION
Los Angeles, California, United States of America

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
1
AKA
N/A
Patents
N/A
General Description
CARDBOARD/ SYNTHETIC CURSOR/ METAL GROMMET

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length
N/A
Width
15.5 cm
Height
N/A
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Mathematics
Category
Calculating devices
Sub-Category
N/A

Manufacturer

AKA
PERRYGRAF
Country
United States of America
State/Province
California
City
Los Angeles

Context

Country
Canada
State/Province
Ontario
Period
C. 1973 +/ DONOR USED THESE SLIDE RULES BETWEEN 1974 & 1985.
Canada
AMERICAN MADE SLIDE RULES USED BY CANADIAN PROFESSIONAL ENGINEER IN HIS WORKIN RADIO COMMUNICATIONS. MR. ROSPLESCH WAS REGISTERED PROFESSIONAL ENGINEER IN ONTARIO & ELECTRICAL ENGINEER FOR GOVT OF CANADA IN WINNIPEG & OTTAWA WHERE HE USED THESE SLIDE RULES BETWEEN 1974-1985.
Function
DEVICE USED TO CALCULATE MANUALLY RADIO FREQUENCIES & POWER LOSS, USED BY ENGINEER.
Technical
EXAMPLE OF SPECIALIZED SLIDE RULE. DONOR DESCRIBES THESE AS TOOLS OF TRADE FOR ELECTRONICS ENGINEERS DESIGNING RADIO COMMUNICATIONS LINKS IN YEARS BEFORE SOPHISTICATED COMPUTER PROGRAMS BECAME AVAILABLE. THEY COULD EASILY BE TRANSPORTED FOR USE IN FIELD WHEN RADIO COMMUNICATIONS SYSTEMS WERE BEING INSTALLED OR MAINTAINED.
Area Notes
Unknown

Details

Markings
BLUE LETTERING ON FRONT READS "RF CALCULATOR" & ON BACK "POWER LOSS CALCULATOR"/ BLUE LETTERING ON BACK READS "PRD ELECTRONICS DIVISION/ HARRIS-INTERTYPE CORPORATION/ 6801 JERICHO TURNPIKE/ SYOSSET, N.Y. 11791" WITH BLACK "(C) 1973, PRD Electronics Inc. DESIGNED - L.A. FASANO/ Slide Chart by PERRYGRAF Div. Nashua Corp, L.A. Cal. 90064"/ HANDWRITTEN "M. ROSPLESCH" ON FRONT/ ILLEGIBLE RED STAMP READS "REGISTERED PROFESSIONAL ENGINEER/ M.F.G. Rosplesch/ PROVINCE OF ONTARIO" ON BACK/ BLUE & BLACK LETTERING, NUMBERS, SCALES ON BACK & FRONT
Missing
COMPLETE
Finish
WHITE & OFF-WHITE CARDBOARD/ COLOURLESS TRANSPARENT SYNTHETIC/ PLATED METAL
Decoration
BLUE, WHITE & BLACK DOUBLE LOGO ON EACH SIDE READING "PRD/ ELECTRONICS, INC." & "HARRIS/ COMMUNICATION AND/ INFORMATION HANDLING/ EQUIPMENT"

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

PERRYGRAF DIV. OF NASHUA CORP., Slide rule, after 1973, Artifact no. 2000.0031, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2000.0031.001/

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