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3B3: Difference between revisions
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{{Plugin Sidebar | | {{Plugin Sidebar | ||
manufacturer=Tektronix |series=560-series scopes |type= 3B3| | |manufacturer=Tektronix | ||
summary=Time Base| | |series=560-series scopes | ||
image=Tek 3b3 front.jpeg| | |type=3B3 | ||
caption=3B3 | |summary=Time Base plug-in | ||
introduced=1962 | | |image=Tek 3b3 front.jpeg | ||
discontinued=(?) | |caption=Tektronix 3B3 | ||
|introduced=1962 | |||
manuals= | |discontinued=(?) | ||
* [[Media:070-365.pdf|Tektronix 3B3 Manual | |manuals= | ||
* [[Media:070-365.pdf | Tektronix 3B3 Manual]] | |||
* [[Media:Tek type 3b3 fcp | * [[Media:Tek type 3b3 fcp.pdf | Tektronix Type 3B3 Factory Calibration Procedure]] | ||
* [[Media:Tek 3b3 fcp tentative oct 1962.pdf|Tektronix 3B3 Factory Calibration Procedure, October 1962]] | * [[Media:Tek 3b3 fcp tentative oct 1962.pdf | Tektronix 3B3 Factory Calibration Procedure, October 1962]] | ||
* [[Media:Tek 3b3 fcp may 1966.pdf|Tektronix 3B3 Factory Calibration Procedure, May 1966]] | * [[Media:Tek 3b3 fcp may 1966.pdf | Tektronix 3B3 Factory Calibration Procedure, May 1966]] | ||
* [[Media:050-0582-00-TEK_3B1-3B3-MOD.pdf|050-0582-00 Q114/Q214 Germanium Transistor Replacement]] | * [[Media:050-0582-00-TEK_3B1-3B3-MOD.pdf | 050-0582-00 Q114/Q214 Germanium Transistor Replacement]] | ||
}} | }} | ||
The '''Tektronix | The '''Tektronix 3B3''' is a time base [[introduced in 1963]] for [[560-series scopes]]. | ||
It works fine in | It works fine in all [[560-series scopes]] other than the [[560]] itself, as well as in the [[129]]. | ||
It provides a calibrated delay from 500 ns to 10 s after the trigger event, before sweeping. | It provides a calibrated delay from 500 ns to 10 s after the trigger event, before sweeping. | ||
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The 3B3 provides an intensified mode that indicates the selected region of interest in the delayed sweep by showing the entire waveform with the trace brighter in the selected region. | The 3B3 provides an intensified mode that indicates the selected region of interest in the delayed sweep by showing the entire waveform with the trace brighter in the selected region. | ||
== | {{MissingSpecs}} | ||
==Links== | |||
{{Documents|Link=3B3}} | |||
==Internals== | ==Internals== | ||
Triggering is done using a 2 mA germanium [[ | Triggering is done using a [[1N3714]] 2 mA germanium [[tunnel diode]]. | ||
The trigger source is buffered by a [[7895]] Nuvistor triode cathode-follower | The trigger source is buffered by a [[7895]] Nuvistor triode cathode-follower | ||
driving a differential amplifier formed by two [[2N2207]] germanium PNP transistors. | driving a differential amplifier formed by two [[2N2207]] germanium PNP transistors. | ||
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3b3 right.jpg | 3b3 right.jpg | ||
3b3 left.jpg | 3b3 left.jpg | ||
Tek 3b3 block.png|Block Diagram | Tek 3b3 block.png | Block Diagram | ||
Tek 3b3 delay pickoff.png|Delay Pickoff | Tek 3b3 delay pickoff.png | Delay Pickoff | ||
Tek 3b3 early delayed sweep trigger.png|Delayed Sweep Trigger | Tek 3b3 early delayed sweep trigger.png | Delayed Sweep Trigger | ||
Tek 3b3 early delayed sweep.png|Delayed Sweep | Tek 3b3 early delayed sweep.png | Delayed Sweep | ||
Tek 3b3 delayed sweep timing switch.png|Delayed Sweep Timing Switch | Tek 3b3 delayed sweep timing switch.png | Delayed Sweep Timing Switch | ||
Tek 3b3 mode switch.png|Mode Switch | Tek 3b3 mode switch.png | Mode Switch | ||
Tek 3b3 delay pickoff.png|Delay Pickoff | Tek 3b3 delay pickoff.png | Delay Pickoff | ||
Tek 3b3 early normal trigger.png|Normal Trigger | Tek 3b3 early normal trigger.png | Normal Trigger | ||
Tek 3b3 normal sweep timing switch.png|Normal Sweep Timing Switch | Tek 3b3 normal sweep timing switch.png | Normal Sweep Timing Switch | ||
Tek 3b3 horizontal amp.png|Horizontal Amp | Tek 3b3 horizontal amp.png | Horizontal Amp | ||
Tek 3b3 11891.jpg | Tek 3b3 11891.jpg | ||
Tek 3b3 11891_2.jpg | Tek 3b3 11891_2.jpg | ||
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</gallery> | </gallery> | ||
==Components== | |||
{{Parts|3B3}} | {{Parts|3B3}} | ||
[[Category:560 series plugins]] | [[Category:560 series plugins]] | ||