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The Tektronix 7M11 is a plug-in which contains two independent 50 Ohm analog delay lines with 75 ns each. Risetime is specified as 175 ps maximum, and attenuation is fixed at two. A separate trigger output is available to eliminate an external power splitter and it is attenuated by a factor of five. The connections are 50-ohm GR-874.

The maximum signal allowed is +/- 5V. The mass of the 7M11 about 2.5kg, so be careful when sliding it into the slot. Generally Tektronix specifies not to ship mainframes with inserted plug-ins, to protect the bus connectors!

Because it is completely passive and has no bus contacts, it can be operated outside of the mainframe on the desk, freeing a slot for another plug-in.