5B40: Difference between revisions
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{{Plugin Sidebar | {{Plugin Sidebar | ||
|manufacturer=Tektronix | |||
summary=60 MHz timebase | | |series=5400-series scopes | ||
image=TEK-5B40-B032137-1.JPG | | |type=5B40 | ||
caption=Tek 5B40 | |summary=60 MHz timebase | ||
introduced=1975 | | |image=TEK-5B40-B032137-1.JPG | ||
discontinued=1992 | |caption=Tek 5B40 | ||
|introduced=1975 | |||
manuals= | |discontinued=1992 | ||
* [ | |manuals= | ||
* [[Media:070-1742-00.pdf|Tektronix 5B40 Manual]] | |||
}} | }} | ||
The '''Tektronix 5B40''' is a 60 MHz timebase for [[5400-series scopes]] | The '''Tektronix 5B40''' is a 60 MHz timebase for [[5400-series scopes]]. | ||
{{MissingSpecs}} | {{MissingSpecs}} | ||
| Line 16: | Line 17: | ||
==Internals== | ==Internals== | ||
The trigger signal passes through source switching, coupling switching, and then a JFET source-follower buffer. | The trigger signal passes through source switching, coupling switching, and then a JFET source-follower buffer. | ||
Next, the signal is buffered by a PNP emitter-follower biased at around | Next, the signal is buffered by a PNP emitter-follower biased at around 5 mA collector current. | ||
That provides a known (low) source impedance for driving the switch-selectable LF reject and HF reject filters. | That provides a known (low) source impedance for driving the switch-selectable LF reject and HF reject filters. | ||
The output of the filters drives a discrete NPN differential amplifier, which drives U165, a [[155-0109-01]] Tek-made trigger IC. | The output of the filters drives a discrete NPN differential amplifier, which drives U165, a [[155-0109-01]] Tek-made trigger IC. | ||
| Line 28: | Line 29: | ||
TEK-5B40-B032137-4.JPG | TEK-5B40-B032137-4.JPG | ||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|5B40}} | |||
[[Category:5400 series horizontal plugins]] | [[Category:5400 series horizontal plugins]] | ||
Latest revision as of 07:33, 22 September 2023
The Tektronix 5B40 is a 60 MHz timebase for 5400-series scopes.
Key Specifications
- please add
Internals
The trigger signal passes through source switching, coupling switching, and then a JFET source-follower buffer. Next, the signal is buffered by a PNP emitter-follower biased at around 5 mA collector current. That provides a known (low) source impedance for driving the switch-selectable LF reject and HF reject filters. The output of the filters drives a discrete NPN differential amplifier, which drives U165, a 155-0109-01 Tek-made trigger IC.
Pictures
Components
Some Parts Used in the 5B40
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 155-0028-00 | 155-0028-00 • 155-0028-01 • 155-0042-00 • 155-0042-01 • 155-0042-02 • 155-0042-03 | Monolithic integrated circuit | Miller integrator and delay pickoff | 5030 • R5030 • 5031 • R5031 • 1401 • 1401A • 1480 • 1481 • 1482 • 1485 • 26G1 • 26G2 • 26G3 • 314 • 335 • 432 • 434 • 4701 • 5B10N • 5B12N • 5B31 • 5B40 • 5B42 • 5S14N • 7B52 • 7B53A • 7B53N • 7L12 • 7L13 • 7L14 • 7L18 • 7S14 • AN/USM-281C • RG501 • Telequipment D63 • Telequipment DM63 |
| 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 |
| 155-0109-00 | 155-0109-00 • 155-0109-01 | Monolithic integrated circuit | trigger | 5B25N • 5B31 • 5B40 • 5B42 • 5B44 • 5S14N • 7B50A • 7B53A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P • 7S14 • 7612D • SC502 • SC503 • SC504 |