555: Difference between revisions

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The 555 is a [[dual-beam scopes|dual-beam CRT oscilloscope]] introduced by Tektronix in  
The Tektronix Type 555 is a [[dual-beam scopes|dual-beam CRT oscilloscope]] introduced by Tektronix in  
[[introduced_in_1959|1959]] and made until the late 1960's, when it was replaced
[[introduced_in_1959|1959]] and made until the late 1960's, when it was replaced
by the [[556]].  
by the [[556]].  

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