3S7
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The Tektronix 3S7 is a Sampling TDR vertical plug-in, introduced in 1971, for 560-series scopes such as the 561 and 564.
When used with the 3T7, a TDR system is formed.
The 3S7/3T7 are seen on the front cover of the Tektronix TDR Measurement Concepts book. Like the 1S2, the connectors on the 3S7/3T7 are 50 Ω GR-874 connectors. A short coaxial cable carries the pulse from the front panel output of the 3T7 to the front panel input of the 3S7, where it passes through the sampling gate and out to the cable or network under test.
The interface between the GR-874 connector and the printed circuit board is described in US Patent 3,426,311.
Key Specifications
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Links
Documents Referencing 3S7
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| 062-1244-00.pdf | Book | Measurement Concepts: Time-Domain Reflectometry Measurements | James A. Strickland • H. Allen Zimmerman • Gordon Long • George Frye | 1969 | Time domain reflectometers • 3S7 • 3T7 |
Pictures
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Front
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Bottom
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Top
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Front
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Left
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Right
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Top
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Bottom
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Bottom
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Bottom
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Panel Wiring
Components
Some Parts Used in the 3S7
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 155-0035-00 | 155-0035-00 • 155-0116-00 | Monolithic integrated circuit | quad op-amp | 3110 • 3S7 • 3T7 • 492 • 492A • 492AP • 492P • 494 • 494P • 496 • 496P • 4010 • 4011 • 4012 • 4013 • 7L5 • 7L12 • 7L13 • 7L14 • 7L18 • 7S11 • 7T11 • 7S12 • S-6 • 1461 • 4602 • P7001 • 613 • 653 |