Slide rule

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Ingenium, 1992.0049.001
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OBJECT TYPE: SPECIAL PURPOSE/RANGE & SIGNAL STRENGTH SELECTOR
DATE: 1952
ARTIFACT NUMBER: 1992.0049.001

MANUFACTURER: PERRYGRAF
MODEL: ECR-16C
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: CARDSTOCK/ SYNTHETIC/ PAPER

Dimensions

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

Length: 17.7 cm
Width: 6.2 cm
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Communications
Category: Radio
Sub-Category: N/A

Manufacturer

AKA: PERRYGRAF
Country: United States of America
State/Province: Illinois
City: Maywood

Context

Country: North America
State/Province: Unknown
Period: AFTER 1952
Canada: WIDELY AVAILABLE & USED IN CANADA
Function: TO CALCULATE TWO WAY RADIO RANGE & SIGNAL STRENGTHS BASED ON ANTENNA HEIGHTS, FREQUENCY ETC. FOR MOBILE RADIO
Technical: EXAMPLE OF TYPE OF DEVICE DISTRIBUTED BY MANUFACTURERS TO EASE THE MATHEMATICAL CALCULATIONS FOR THE SET-UP OF TWO WAY RADIO SYSTEMS
Area Notes: Unknown

Details

Markings: .1: PRINTING INCLUDES: 'GENERAL [LOGO] ELECTRIC/ COMMUNICATION PRODUCTS/ DEPARTMENT/ MOUNTAIN VIEW ROAD/ LYNCHBRUG, VIRGINIA' 'RANGE and STRENGTH/ Calculator/ [LOGO]/ 2-WAY MOBILE RADIO' 'ECR-16C Printed in U.S.A. Copyright 1952, General Electric Co. Slide-Chart by PERRYGRAF, Maywood, Ill.'/ [CALIBRATIONS FOR: 'TRANSMITTING/ANTENNA HEIGHT/ RECEIVING/ANTENNA HEIGHT/ KEY NUMBER']/ INSTRUCTIONS FOR USE INCLUDED/.2 VARIOUS CALIBRATIONS/ ENVELOPE INCLUDES: '[LOGO]/ RANGE and/ SIGNAL STRENGTH/ Calculator/ FOR 2 WAY RADIO/ LIMITING/ HEIGHT/ SCALE/.../ COMMUNICATION PRODUCTS/ DEPARTMENT/ LYNCHBURG, VIRGINIA/ ECR 16C 6Q/ PRINTED IN U.S.A.'/ 'ASSUMED and LIMITING/ CONDITIONS'
Missing: N/A
Finish: WHITE ENVELOPE WITH BLUE PRINTING/.1 WHITE & YELLOW WITH BLACK PRINTING/.2 CREAM WITH BLACK PRINTING
Decoration: N/A

CITE THIS OBJECT

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

PERRYGRAF, Slide rule, 1952, Artifact no. 1992.0049, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1992.0049.001/

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