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The '''Tektronix Type 545''' is a 30 (33) MHz scope that takes [[letter-series and 1-series plug-ins]]. It has two timebases, which allows delayed triggering. | The '''Tektronix Type 545''' is a 30 (33) MHz scope that takes [[letter-series and 1-series plug-ins]]. It has two timebases, which allows delayed triggering. | ||
Type 545 was [[introduced in 1955|introduced February 7th, 1955]] along with the Type [[541]], and superseded in 1959 by the Type 545A, which was in turn superseded in 1964 by the Type 545B, which was produced until 1973. | Type 545 was [[introduced in 1955|introduced February 7th, 1955]] along with the Type [[541]], and superseded in 1959 by the Type 545A, | ||
which was in turn superseded in 1964 by the Type 545B, which was produced until 1973. | |||
The difference between the 545A and 545 is the control ergonomics, not any major circuit design changes. | The difference between the 545A and 545 is the control ergonomics, not any major circuit design changes. | ||
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== Versions == | == Versions == | ||
There were also rack-mount versions. Types RM41 and RM45 were introduced in October 1957]], | There were also rack-mount versions. Types RM41 and RM45 were [[introduced in October 1957]], | ||
Types RM41A and RM45A were [[introduced in 1959|introduced in May 1959]] simultaneously with their bench counterparts, and the rackmount Type RM545B or R545B was introduced at the same time as Type 545B. | Types RM41A and RM45A were [[introduced in 1959|introduced in May 1959]] simultaneously with their bench counterparts, | ||
and the rackmount Type RM545B or R545B was introduced at the same time as Type 545B. | |||
Clones of the 545A are the [[Lavoie LA-265A]] and [[Hickok 1805A]]. These clones were not licensed by Tektronix. | Clones of the 545A are the [[Lavoie LA-265A]] and [[Hickok 1805A]]. These clones were not licensed by Tektronix. | ||