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* [ | * [[Media:IM-121.pdf|Tektronix 121 Manual]] | ||
* [ | * [[Media:Tek_type_121_factory_cal_proc.pdf|Tektronix 121 Factory Calibration Procedure]] | ||
}} | }} | ||
The '''Tektronix 121''' is a wideband preamplifier intended for [[511]] scopes. The [[1121]] can be considered the successor to the 121. | The '''Tektronix 121''' is a wideband preamplifier intended for [[511]] scopes. The [[1121]] can be considered the successor to the 121. |