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[D8123ZCS], Letter from Edward Leamington Nichols to Thomas Alva Edison, June 30th, 1881

Title: [D8123ZCS], Letter from Edward Leamington Nichols to Thomas Alva Edison, June 30th, 1881
Editor's Notes: Using calorimeter to test the "economy" of new A lamps for Paris order; gets result of 3278 ft-lbs per min at 16 candles. This is for 10 per hp lamps. [Note: this is about right; 1 hp = 3.3 x10(4) ft-lbs/min; so 10 lamps would give 3.278 x 10(4) or close to 1 hp.]
Author: Nichols, Edward Leamington
Recipient: Edison, Thomas Alva
Date: 1881-06-30
Type: Letter
Subject: Testing and quality control; Incandescent lamp
Folder ID: D8123-F
Microfilm ID: 57:919
Document ID: D8123ZCS
URL: https://edisondigital.rutgers.edu/document/D8123ZCS
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 57

Item sets: [D8123-F] (D-81-23) Electric Light -- Edison Electric Lamp Co -- General

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