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535: Difference between revisions
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Type 535, the single-timebase Type [[531]], and the first four plugins, Types 53[[A]], 53[[B]], 53[[C]], and 53[[D]]], | Type 535, the single-timebase Type [[531]], and the first four plugins, Types 53[[A]], 53[[B]], 53[[C]], and 53[[D]]], | ||
were introduced in August 1954, advertised as '...the "convertibles" of the Tektronix line'. | were [[introduced in 1954|introduced in August 1954]], advertised as '...the "convertibles" of the Tektronix line'. | ||
Types [[541]] and [[545]] came out in March 1955. | Types [[541]] and [[545]] came out in March 1955. | ||