The Tektronix 7M11 is a plug-in which contains two independent 50 Ω, 75 ns analog delay lines with GR-874 connectors. Rise time is specified as 175 ps maximum, and attenuation is fixed at 2:1.
To eliminate an external power splitter, a separate trigger output is available through a BNC connector at 5:1 attenuation (line 1 or 2 switch selectable).
The mass of the 7M11 is about 2.5 kg (5.5 lb), so one must 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, the 7M11 can be operated outside of the mainframe on the desk, freeing a slot for another plug-in. Tek originally made a carrying enclosure (437-0106-00) to hold a 7M11 for desk use.
The 035-5031-00 TM500 plug-in is roughly equivalent to one half of a 7M11.
|Delay||75 ns (each channel)|
|Delay difference||max. ±30 ps between channels|
|Rise time||185 ps|
|Attenuation||2:1 (6 dB) on main outputs, 5:1 (14 dB) on trigger pick-off|
|Input voltage||max. ±5 V|
|Weight||2.6 kg (!)|
Documents Referencing 7M11
|Tekscope 1969 V1 N5 Oct 1969.pdf||Article||Introducing the New Generation||1969||7000-series scopes • 7504 • 7704 • 7A11 • 7A12 • 7A13 • 7A14 • 7A16 • 7A22 • 7S11 • 7M11 • 7B50 • 7B51 • 7B70 • 7B71 • 7T11 • R5030 • 7000 series readout system • Miniature relays • Cam switches • Industrial Design • T7500 • T7700 • P6052 • P6053 • C-50 • C-51 • 204-2|
|Tekscope 1970 V2 N1 Feb 1970.pdf||Article||Basic Sampling||1970||Sampling • 7T11 • 7S11 • 7M11|
front components detail, right side
front components detail, left side
In this specimen, the GR874 connectors were replaced by BNC connectors of adequate quality
7M11 circuit diagram
Correction R33 value