D: Difference between revisions

64 bytes removed ,  18 August 2021
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series=500-series scopes |
series=500-series scopes |
manuals=
manuals=
* [http://w140.com/mmm/tek-d.pdf Tektronix Type D Manual (PDF)]
* [[Media:070-228.pdf|Tektronix Type D Manual]] (PDF, OCR, bad-OCR)
<!-- * [http://w140.com/tek_fcp/tek_type_d_factory_cal_proc.pdf Cal procedure] -->
* [http://bama.edebris.com/manuals/tek/d/ Type D manual @ BAMA]
* [[Media:070-228.pdf|Tektronix Type D Manual (PDF, OCR, bad-OCR)]]
* [[Media:tek_type_d_fcp.pdf|Tektronix Type D Factory Calibration Procedure (PDF, OCR)]]
* [[Media:tek_type_d_fcp.pdf|Tektronix Type D Factory Calibration Procedure (PDF, OCR)]]
* [[Media:Tek type d cal outline.pdf|Tektronix Type D Calibration Outline (PDF, OCR)]]
* [[Media:Tek type d cal outline.pdf|Tektronix Type D Calibration Outline (PDF, OCR)]]
<!-- * [http://w140.com/tek_fcp/tek_type_d_factory_cal_proc.pdf Cal procedure]
* [http://bama.edebris.com/manuals/tek/d/ Type D manual @ BAMA] -->
}}
}}
The '''Tektronix Type D''' is a differential amplifier plug-in for [[500-series scopes]].
The '''Tektronix Type D''' is a differential amplifier plug-in for [[500-series scopes]].


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This scheme would be reprised in Type [[W]].
This scheme would be reprised in Type [[W]].


It displays the difference between two input signals, with a common-mode rejection ratio of 10,000.  It has
It displays the difference between two input signals, with a common-mode rejection ratio of 10,000.   
six tubes, on a shock-mounted subchassis to avoid microphonics.
It has six tubes, on a shock-mounted subchassis to avoid microphonics.


Along with Types [[A]], [[B]], and [[C]], Type D was introduced with the [[531]] and [[535]] in [[introduced in 1954|1954]].
Along with Types [[A]], [[B]], and [[C]], Type D was introduced with the [[531]] and [[535]] in [[introduced in 1954|1954]].
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==Internals==
==Internals==
Instruments below serial number 3462 used a pair of [[5814]] tubes at the input; later production used [[12AU7]]'s.
Instruments below serial number 3462 used a pair of [[5814]] tubes at the input; later production used [[12AU7]]'s.
These two tube types have different heater currents, and because the heaters are
These two tube types have different heater currents, and because the heaters are series-wired, you cannot switch from one type to the other without circuit modification.
series-wired, you cannot switch from one type to the other without circuit modification.


{{BeginSpecs}}
{{BeginSpecs}}