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[MBN007AAV], Technical Note, John White Howell, May 10th, 1881

Title: [MBN007AAV], Technical Note, John White Howell, May 10th, 1881
Editor's Notes: Notes on lamp/carbon batches, beginning order #318. Many graphs of lifetimetests, in which X-axis probably houre; Y-axis seems to be number of lamps in batch that have failed. Grouped by order number, with some description of carbonizing materials/processes, and test conditions (eg, how many cp) Notes whether lamps have blue, what kind of pump they're evacuated on
Author: Howell, John White
Mentioned: Haid, Alfred; Branner, John Casper
Date: 1881-05-10
Type: Technical Note
Subject: Testing and quality control; Incandescent lamp; Vacuum and glass bulb
Folder ID: MBN007-F
Microfilm ID: 91:321
Document ID: MBN007AAV
URL: https://edisondigital.rutgers.edu/document/MBN007AAV
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 91

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