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The '''Tektronix 5A21N''' is a high-gain differential amplifier plug-in for [[5000-series scopes]]. | The '''Tektronix 5A21N''' is a high-gain differential amplifier plug-in for [[5000-series scopes]]. | ||
In addition to inverting and noninverting differential inputs, it also features a current probe input for 125-turn probes such as the [[P6021]]. | In addition to inverting and noninverting differential inputs, it also features a current probe input for 125-turn probes such as the [[P6021]]. | ||
Unlike more advanced differential amplifier plug-ins, it has neither a DC offset control nor a built-in comparison voltage source, and | Unlike more advanced differential amplifier plug-ins, e.g. the [[5A22N]]/[[7A22]], it has neither a DC offset control nor a built-in comparison voltage source, and only one switchable bandwidth limit, a fixed 10 kHz low-pass. | ||
{{BeginSpecs}} | {{BeginSpecs}} |