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Party Line Dials - Operator Call Indicator

Started by cihensley@aol.com, July 21, 2010, 01:06:19 PM

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cihensley@aol.com

July 21, 2010, 01:06:19 PM
To those of you that read the article on party line dials in the July TCI newsletter, you may find the attached of interest. It is an article from the November 1930 BLR. This is a more detailed explanation of what Roger Conklin diagrammed in the TCI article.

Chuck
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