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The '''Tektronix Type CA''' is the most common plug-in for [[500-series scopes]] – over 50,000 were produced. | The '''Tektronix Type CA''' is the most common plug-in for [[500-series scopes]] – over 50,000 were produced. | ||
It was designed by [[John Kobbe]] and [[Bill Polits]]. | It was designed by [[John Kobbe]] and [[Bill Polits]]. | ||
The NORMAL/INVERT switch and algebraic add functions were suggested by [[Charlie Rhodes]]. | |||
Type CA is an enhancement over its predecessor, Type [[C|53/54C]], adding ADDED mode to the A, B, CHOPPED, ALT repertoire. | Type CA is an enhancement over its predecessor, Type [[C|53/54C]], adding ADDED mode to the A, B, CHOPPED, ALT repertoire. |