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1A1: Difference between revisions
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This is useful, for example, to view the IF and AF of a radio receiver at the same time. | This is useful, for example, to view the IF and AF of a radio receiver at the same time. | ||
Types 1A1 and [[1A2]] were introduced together in 1964, the former for high-end use, | Types 1A1 and [[1A2]] were [[introduced in 1964|introduced together in 1964]], the former for high-end use, | ||
the latter as an upgrade/replacement for Type [[CA]]. Both remained available until | the latter as an upgrade/replacement for Type [[CA]]. Both remained available until | ||
the classic plugin scope line was discontinued after 1974. | the classic plugin scope line was discontinued after 1974. | ||