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| Description: A close-up showing the recessed center electrode on a spark tester. It is recessed 3/8 inch into the shell and the spark must then jump another 3/8 inch to the shell for a total gap of 3/4 inch.
Picture Stats: Views: 278 Filesize: 1.26MB Height: 700 Width: 768 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=29834 |