067-0657-00: Difference between revisions
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* [[Bruce Hofer]], ''[https://vintagetek.org/years-at-tektronix-hofer/ My Years at Tektronix] | * [[Bruce Hofer]], ''[https://vintagetek.org/years-at-tektronix-hofer/ My Years at Tektronix] | ||
* [https://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/067-0657-00%20067-0657-99/067-0657-99_067-0657-00.html 067-0657-xx @ amplifier.cd] | * [https://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/067-0657-00%20067-0657-99/067-0657-99_067-0657-00.html 067-0657-xx @ amplifier.cd] | ||
{{PatentLinks|067-0657-00}} | |||
==Pictures== | ==Pictures== | ||
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==Components== | ==Components== | ||
{{Parts|067-0657-00}} | {{Parts|067-0657-00}} | ||
[[Category:7000 series test and calibration plugins]] | [[Category:7000 series test and calibration plugins]] | ||
Latest revision as of 03:31, 26 June 2024
The Tektronix 067-0657-00 Normalized Ramp Generator is a calibration plug-in for 7000-series scopes.
It provides calibrated sweep rates from 0.5 ns/Div to 50 ns/Div (in a 1–2–5 sequence) plus 1 μs/Div and 1 ms/Div.
The calibration fixture is triggered from an external signal (such as a trigger output from a time-mark generator) applied to the front-panel TRIG IN connector.
Internals
The 067-0657-00 was the result of some fundamental research by Bruce Hofer inspired by production issues in the calibration of early 7904 scopes. This lead to a new sweep circuit that uses current steering in a differential pair to start the charging of the timing capacitor as is discussed in patent 4009399. The sweep circuit in the 067-0657-00 follows the patent application but does not implement the baseline stability circuit, which was incorporated in the 7B92A.
Links
Patents that may apply to 067-0657-00
| Page | Title | Inventors | Filing date | Grant date | Links |
|---|---|---|---|---|---|
| Patent US 4009399A | Gated ramp generator | Bruce Hofer | 1976-02-05 | 1977-02-22 | 7B92A • 067-0657-00 |
Pictures
Components
Some Parts Used in the 067-0657-00
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 155-0049-00 | 155-0049-00 • 155-0049-01 • 155-0049-02 | Monolithic integrated circuit | sweep control with lockout | 335 • 464 • 465 • 466 • 475 • 475A • 475M • 485 • 5B31 • 5B40 • 5B52 • 5B42 • 5B44 • 7B53A • 7B80 • 7B85 • 7B87 • 7B92A • 7B90P • 7B10 • 7B15 • SC502 • 7B42N • AN/USM-281C • 067-0657-00 |