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Vintage dave (talk | contribs) (Remove picture of Type CA plugin misnamed as Type D.) |
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{{Plugin Sidebar | {{Plugin Sidebar | ||
|manufacturer=Tektronix | |||
summary=Differential amplifier| | |series=500-series scopes | ||
image=Tek type d front.jpg | | |type=Type D | ||
caption=D front view| | |summary=Differential amplifier | ||
introduced=1954 | | |image=Tek type d front.jpg | ||
discontinued=1969 | | |caption=D front view | ||
|introduced=1954 | |||
|discontinued=1969 | |||
* [ | |designers=Rodgers Jenkins | ||
<!-- * [http://w140.com/tek_fcp/tek_type_d_factory_cal_proc.pdf Cal procedure] | |manuals= | ||
* [http://bama.edebris.com/manuals/tek/d/ Type D manual @ BAMA] | * [[Media:070-228.pdf|Tektronix Type D Manual]] (bad-OCR) | ||
* [[Media:tek_type_d_fcp.pdf|Tektronix Type D Factory Calibration Procedure]] (OCR) | |||
* [[Media:Tek type d cal outline.pdf|Tektronix Type D Calibration Outline]] (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]]. | ||
It was designed by [[Rodgers Jenkins]]. | |||
Type D was the most sensitive plug-in of the original four. | Type D was the most sensitive plug-in of the original four. | ||
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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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At the time it was called Type 53D. | At the time it was called Type 53D. | ||
It was briefly renamed 53D/54D in 1955 with the introduction of the [[541]] and [[545]]. This quickly changed to 53/54D, and finally shortened to just "D" in 1959 with the introduction of the 5xxA scopes. | It was briefly renamed 53D/54D in 1955 with the introduction of the [[541]] and [[545]]. This quickly changed to 53/54D, and finally shortened to just "D" in 1959 with the introduction of the 5xxA scopes. | ||
Its final year in the catalog was 1968; it had been superseded by Type | Its final year in the catalog was 1968; it had been superseded by Type [[1A6]]. | ||
[[K]], [[L]], and [[T]] are tied for longest production life, at 16 years. | [[K]], [[L]], and [[T]] are tied for longest production life, at 16 years. | ||
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[[Lavoie Laboratories]] produced an unauthorized clone, the [[Lavoie LA-265-D]]. | [[Lavoie Laboratories]] produced an unauthorized clone, the [[Lavoie LA-265-D]]. | ||
{{BeginSpecs}} | |||
{{Spec | Deflection | 1 mV/Div to 50 V/Div in 1–2–5-10-20-50 sequence and 1-10-100-1000 sequence }} | |||
{{Spec | Input impedance | 1 MΩ // 47 pF (either input) }} | |||
{{Spec | Bandwidth | 2 MHz with MV/CM MULTIPLIER set to 50; 300kHz with MV/CM MULTIPLIER set to 1 }} | |||
{{Spec | CMRR | 10000:1 with MILLIVOLTS/CM set to 1, 1000:1 otherwise }} | |||
{{Spec | Signal ranges | }} | |||
{| class="wikitable" border=1 style="margin-left: 8em;" | | |||
!Range | |||
! Common mode dynamic range* | |||
|- | |||
| MILLIVOLTS/CM = 1 || ±2.5 V | |||
|- | |||
| MILLIVOLTS/CM = 10 || ±25 V | |||
|- | |||
| MILLIVOLTS/CM = 100 || ±250 V | |||
|- | |||
| MILLIVOLTS/CM = 1000 || ±500 V | |||
|- | |||
|} | |||
* In practice, Type D behaves well up to about +/–15V if the CM signal is either a brief excursion or a constant. If the CM varies slowly, DC shift in the input tubes will degrade CMRR. | |||
{{EndSpecs}} | |||
==Links== | |||
{{Documents|Link=D}} | |||
==Internals== | ==Internals== | ||
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. | |||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
D.jpeg | D.jpeg | ||
D 1.JPG|Front | D 1.JPG|Front | ||
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Tek type d front.jpg|Front View (vertical position knob not original) | Tek type d front.jpg|Front View (vertical position knob not original) | ||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|D}} | |||
[[Category:500 series plugins]] | [[Category:500 series plugins]] | ||
[[Category:Differential amplifiers]] | [[Category:Differential amplifiers]] |