Slide rule

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OBJECT TYPE
SPECIAL PURPOSE/ENGINEER
DATE
1961
ARTIFACT NUMBER
2000.0028.001
MANUFACTURER
PERRYGRAPH CORP.
MODEL
GIT-AA-002
LOCATION
Maywood, Illinois, 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/ METAL GROMMETS

Dimensions

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

Length
23.6 cm
Width
10.2 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
PERRYGRAPH
Country
United States of America
State/Province
Illinois
City
Maywood

Context

Country
Canada
State/Province
Ontario
Period
C. 1961 +/ DONOR USED THESE SLIDE RULES BETWEEN 1974 & 1985.
Canada
AMERICAN MADE SLIDE RULES USED BY CANADIAN PROFESSIONAL ENGINEER IN HIS WORK IN 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 MANUALLY COMPUTE PARAMETERS USED IN ANTENNA MEASUREMENTS, USED BY ENGINEER.
Technical
EXAMPLE OF SPECIALIZED SLIDE RULE. DONOR DESCRIBES THESE AS TOOLS OF TRADE FOR ELECTRONICSENGINEERS 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
HANDWRITTEN "M. ROSPLESCH" ON FRONT/ BLACK & WHITE LETTERING ON EACH SIDE READING "TACO/ PARABOLIC/ ANTENNA/ CALCULATOR"/ BLACK LETTERING ON BACK READS "Price $2.50 LM-5/66 Form No. GIT-AA-002" & "Slide Chart Copr. 1961, PERRYGRAF Corp., Maywood, Ill"/ ILLEGIBLE RED STAMP READS "REGISTERED PROFESSIONAL ENGINEER/ M.F.G. Rosplesch/ PROVINCE OF ONTARIO" ON BACK"/ RED LETTERING ON FRONT READS "GOVERNMENT & INDUSTRIAL DIVISION JERROLD ELECTRONICS CORPORATION PHILADELPHIA, PA 19105" & ON BACK "MICROWAVE ANTENNAS 2500 MHz ETV ANTENNAS ANTENNA SYSTEMS RIGID TRANSMISSION LINE"/ BLACK LETTERING, NUMBERS, SCALES ON FRONT, BACK, SLIDE
Missing
COMPLETE
Finish
WHITE & RED FRONT & BACK/ WHITE SLIDE WITH BLACK GRIPS
Decoration
B&W DEPICTION OF PARABOLIC ANTENNA ON FRONT

CITE THIS OBJECT

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

PERRYGRAPH CORP., Slide rule, after 1961, Artifact no. 2000.0028, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2000.0028.001/

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