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Tektronix 067-0657-00
7000 Series Normalized Ramp Generator
067-0657-00 Front

Compatible with 7000-series scopes

Produced from 1976 to

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

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.


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.




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