Tektronix
321
Provisional entry — research in progress
This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.
The Tektronix 321 is a portable oscilloscope. The Tektronix 321 could operate on AC line power or rechargeable batteries. The Tektronix 321 used a Nuvistor ceramic tube for the vertical amplifier input and was otherwise transistorized.[1]
What it is
How it works
The model 321 could operate from AC line power or rechargeable batteries. The description also states that it used a Nuvistor ceramic tube only for the vertical amplifier input.[1]
What do the numbers mean?
Configuration & options8
Vintage & configurations
Documented models & variants
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| 321A | — | — | described as the all-transistor model introduced about a year and a half after the 321 | en.wikipedia.org[1] |
What replaced it?
Related models
- successorTektronix 321A— Model 321 was the portable precursor; 321A came out about a year and a half later.source[1]
- successorTektronix 323— 300 series replaced the model 321 oscilloscopesource[1]
Where are the manuals?
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
Not publicly documented
Field notes
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Frequently asked questions
When was the Tektronix 321 introduced?
The Tektronix 321 was introduced in 1961.[1]
How does the Tektronix 321 obtain power?
The Tektronix 321 can run on AC line power or on rechargeable batteries.[1]
What is the significance of the Tektronix 321 in oscilloscope history?
The Tektronix 321 is historically significant as Tektronix's first battery-operated transistor oscilloscope, marking a transition toward transistorized circuitry in portable instruments.[1]
What tube type is used in the Tektronix 321's vertical amplifier input?
The Tektronix 321 uses a Nuvistor ceramic tube in the vertical amplifier input stage.[1]
Not publicly documented
The following facts about the 321 are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
The control-system platform and OS era of the 321 are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the 321 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 321 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the 321 are on record.
Answerable by: an OEM parts catalog or a service engineer
No publicly hosted manuals, SOPs, or datasheets for the 321 are on record.
Answerable by: university cleanroom staff or an OEM application specialist
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (1)Every fact above is drawn from these public sources
- [1]en.wikipedia.org — en.wikipedia.orgen.wikipedia.org
Last updated Sep 22, 2026.
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