5B25N: Difference between revisions

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|discontinued=1988
|discontinued=1988
|manuals=
|manuals=
* [[Media:070-2813-00.pdf|Tektronix 5B25N Service Manual (1982 revision, complete, with schematics)]]
* [[Media:070-2813-00.pdf|Tektronix 5B25N Service Manual]] (1982 revision, complete, with schematics)
* [http://w140.com/tek_5b25n.pdf Tektronix 5B25N Service Manual (1986 revision, incomplete, no schematics)]
<small>
[[Category:Manual needed]]
* [[Media:070-2813-00_rev1986_s1-s3.pdf|Tektronix 5B25N Service Manual]] (1986 revision, S1-S3 only, no schematics)
</small>
}}
}}
The '''Tektronix 5B25N''' is a "digitizer time base" for the [[5223]] scope, i.e. a time base that also contains a sample clock generator.
The '''Tektronix 5B25N''' is a "digitizer time base" for the [[5223]] scope, i.e. a time base that also contains a sample clock generator.
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{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Sweep | 200 ns/Div to 5 s/Div, 1—2—5 }}
{{Spec | Sweep | 200 ns/Div to 5 s/Div, 1–2–5 }}
{{Spec | Triggering | > 0.4 Div or 50 mV to 1 MHz, > 0.6 Div or 200 mV to 20 MHz }}
{{Spec | Triggering | > 0.4 Div or 50 mV to 1 MHz, > 0.6 Div or 200 mV to 20 MHz }}
{{Spec | X-Y mode | 50 mV/Div, 180 ns rise time, 2 MHz bandwidth, 1 MΩ // 24 pF input }}
{{Spec | X-Y mode | 50 mV/Div, 180 ns rise time, 2 MHz bandwidth, 1 MΩ // 24 pF input }}
{{Spec | Features |
{{Spec | Features |
* × 10 magnifier
* ×10 magnifier
* Pretrigger adjustment 0-100%
* Pretrigger adjustment 0–100%
}}
}}
{{EndSpecs}}
{{EndSpecs}}

Revision as of 11:18, 14 February 2023

Tektronix 5B25N
20 MHz digitizer time base
Tektronix 5B25N front

Compatible with 5000-series scopes

Produced from 1981 to 1988

Manuals

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

The Tektronix 5B25N is a "digitizer time base" for the 5223 scope, i.e. a time base that also contains a sample clock generator. It will also operate in 5400-series mainframes as a generic time base. The 5B25N/5223 system uses real-time sampling at sweep rates of 0.1 ms/div or slower. At sweep rates of 50 μs/div or faster, equivalent-time sampling is used. The 5B25N uses the 155-0109-01 trigger chip (U95).

Key Specifications

Sweep 200 ns/Div to 5 s/Div, 1–2–5
Triggering > 0.4 Div or 50 mV to 1 MHz, > 0.6 Div or 200 mV to 20 MHz
X-Y mode 50 mV/Div, 180 ns rise time, 2 MHz bandwidth, 1 MΩ // 24 pF input
Features
  • ×10 magnifier
  • Pretrigger adjustment 0–100%

Pictures

Custom ICs used in the 5B25N

Page Model Part nos Description Designers Used in
155-0109-00 M120B 155-0109-00 155-0109-01 trigger Gary Vance 5B25N 5B31 5B40 5B42 5B44 5S14N 7B50A 7B53A 7B80 7B85 7B87 7B81P 7B90P 7S14 7612D SC502 SC503 SC504