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File:Gramme Ring - 6 coil - 3 pole.svg

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Drawing based on w:Image:Gramme Ring - 6 coil - 3 pole.png. Description from there:

From illustration caption:

Gramme ring armature with six coils. The sine curves 1, 2, and 3, represent the conditions due to coils AA', BB', and CC', respectively and 4, the resultant pulsations.

Public Domain source: 

   * Hawkins Electrical Guide, Volume 1
   * Chapter 14: The Dynamo: Current Commutation
   * Page 178, Figure 186
   * Copyright 1917 by Theo. Audel & Co.
   * Printed in the United States

For a list of all these illustrations used in Wikipedia please see the article w:Hawkins Electrical Guide.

Scanned by Dale Mahalko, Gilman, WI, USA
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Other versions Original: w:Image:Gramme Ring - 6 coil - 3 pole.png
 
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current14:46, 1 April 2008Thumbnail for version as of 14:46, 1 April 2008720 × 473 (61 KB)Borb{{Information |Description=Drawing based on w:Image:Gramme Ring - 6 coil - 3 pole.png. Description from there: From illustration caption: Gramme ring armature with six coils. The sine curves 1, 2, and 3, represent the conditions due to coils AA', BB

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