B7G base: Difference between revisions

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			[[File:B7G base.gif\|thumb\|350px\|right\|click to enlarge]]
	The 7-pin '''B7G tube base''' was developed in the late 1930s for miniaturized all-glass tubes. The earliest tubes using this base were commercially introduced in 1939, such as the [[6J6]].		The 7-pin '''B7G tube base''' was developed in the late 1930s for miniaturized all-glass tubes. The earliest tubes using this base were commercially introduced in 1939, such as the [[6J6]].