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The Type W is a plug-in amplifier for [[500-series scopes]]. | {{Plugin Sidebar 2 | | ||
title=Tektronix Type W | | |||
summary=8-23 MHz differential comparator | | |||
image=type w front.jpg | | |||
caption=Type W front view| | |||
introduced=1965 | | |||
discontinued=1974 | | |||
series=[[500-series scopes]]| | |||
manuals= | |||
* [http://w140.com/mmm/tek-w.pdf Tektronix Type W Manual (37MB, PDF)] | |||
* [[Media:070-432.pdf|Tektronix Type W Manual (11MB, PDF)]] | |||
* [http://w140.com/tek_type_w_schematics.pdf Tektronix Type W Schematics Only (PDF)] | |||
* [[Media:Tek type w fcp jan 1969.pdf|Tektronix Type W Factory Calibration Procedure, January 1969 (PDF, needs OCR)]] | |||
* [[Media:Tek type w fcp no ocr.pdf|Tektronix Type W Factory Calibration Procedure, March 1969 (PDF, needs OCR)]] | |||
<!-- * [[Media:tek_type_w_schem_only.pdf|Tektronix Type W Schematics Only (PDF, OCR)]] --> | |||
}} | |||
The '''Tektronix Type W''' is a differential comparator plug-in amplifier for [[500-series scopes]]. | |||
Its bandwidth varies from 23 MHz to 8 MHz depending on gain. Only modestly | |||
faster than its [[Z|Type Z]] predecessor, Type W extends performance in | |||
terms of sensitivity, reaching 1 mV/div. | |||
It achieves 20,000 to 1 common-mode rejection at DC and low frequencies. | |||
It has a built in precision variable voltage supply, "V<sub>c</sub>", | |||
which is controlled by a ten-turn pot and can vary from either -1.1 V to +1.1 V or -11 V to +11 V. | |||
Type W has two signal inputs, "A" and "B". | |||
A mode switch selects between displaying A-Vc, A-B, or Vc-B. | |||
The "A-B" mode is particularly useful for displaying the current in a sense resistor, | The "A-B" mode is particularly useful for displaying the current in a sense resistor, | ||
while the other modes provide "slideback" measurements of small variations superimposed on a large constant. | while the other modes provide "slideback" measurements of small variations superimposed on a large constant. | ||
An output of V<sub>c</sub> is provided on the front panel of the Type W. Unlike the Z, | |||
Type W has two gain axes, a decade attenuator and a 1-2-5-10-20-50 selector, | |||
reminiscent of [[D|Type D]] from ten years before. | |||
Type W is the only letter-series plug-in with an "infinite resistance" input mode selectable at the front panel. | |||
([[1A5|Type 1A5]] has an internal jumper that can be cut.) | |||
In the letter-series timeline of differential comparators, Type W, [[introduced in 1965]], | |||
follows [[Z|Type Z]] and precedes [[1A5|Type 1A5]]. | |||
==Specifications== | |||
[[Category:Specifications needed]] ''please add'' | |||
==Pictures== | |||
<gallery> | <gallery> | ||
Type_w_front.jpg|Front view. | |||
Type_w_topleft.jpg|Top-left view. | |||
Type_w_bottom.jpg|Bottom view. | |||
Tek w block.png|Block Diagram | |||
Tek w differential comparator.png|Differential Comparator | |||
Tek w input attenuators.png|Input Attenuators | |||
Tek w switching diagram.png|Switching Diagram | |||
Tek type w a phase 1.jpg|A-phase (prototype) Type W | |||
Tek type w a phase 2.jpg|A-phase (prototype) Type W | |||
Tek type w a phase 3.jpg|A-phase (prototype) Type W | |||
Tek type w a phase 4.jpg|A-phase (prototype) Type W | |||
Tek type w a phase 5.jpg|A-phase (prototype) Type W | |||
</gallery> | </gallery> | ||
[[Category:500 series plugins]] |
Revision as of 08:51, 2 June 2019
Template:Plugin Sidebar 2 The Tektronix Type W is a differential comparator plug-in amplifier for 500-series scopes. Its bandwidth varies from 23 MHz to 8 MHz depending on gain. Only modestly faster than its Type Z predecessor, Type W extends performance in terms of sensitivity, reaching 1 mV/div.
It achieves 20,000 to 1 common-mode rejection at DC and low frequencies. It has a built in precision variable voltage supply, "Vc", which is controlled by a ten-turn pot and can vary from either -1.1 V to +1.1 V or -11 V to +11 V.
Type W has two signal inputs, "A" and "B". A mode switch selects between displaying A-Vc, A-B, or Vc-B. The "A-B" mode is particularly useful for displaying the current in a sense resistor, while the other modes provide "slideback" measurements of small variations superimposed on a large constant.
An output of Vc is provided on the front panel of the Type W. Unlike the Z, Type W has two gain axes, a decade attenuator and a 1-2-5-10-20-50 selector, reminiscent of Type D from ten years before.
Type W is the only letter-series plug-in with an "infinite resistance" input mode selectable at the front panel. (Type 1A5 has an internal jumper that can be cut.)
In the letter-series timeline of differential comparators, Type W, introduced in 1965, follows Type Z and precedes Type 1A5.
Specifications
please add
Pictures
-
Front view.
-
Top-left view.
-
Bottom view.
-
Block Diagram
-
Differential Comparator
-
Input Attenuators
-
Switching Diagram
-
A-phase (prototype) Type W
-
A-phase (prototype) Type W
-
A-phase (prototype) Type W
-
A-phase (prototype) Type W
-
A-phase (prototype) Type W