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title=Tektronix Type Z| | title=Tektronix Type Z| | ||
summary=Comparator preamp plug-in| | summary=Comparator preamp plug-in| | ||
image=Tek | image=Tek Type Z front.jpg | | ||
caption=Type Z front view| | caption=Type Z front view| | ||
introduced=1960 | | introduced=1960 | | ||
Line 8: | Line 8: | ||
series=[[500-series scopes]]| | series=[[500-series scopes]]| | ||
manuals= | manuals= | ||
* [[Media:070-251.pdf|Tektronix Type Z Manual]] (PDF, OCR) | |||
* [[Media:tek_type_z_fcp.pdf|Tektronix Type Z Factory Calibration Procedure (PDF)]] | |||
* [[Media:Tek type z cal outline.pdf|Tektronix Type Z Calibration Outline (PDF, OCR)]] | |||
* [[Media:070-251.pdf|Tektronix Type Z Manual (PDF, OCR) | |||
* [[Media: | |||
* [[Media: | |||
}} | }} | ||
The '''Tektronix Type Z''' is a comparator plug-in for [[500-series scopes]] | The '''Tektronix Type Z''' is a comparator plug-in for [[500-series scopes]], [[introduced in 1960]] and dropped after 1968. | ||
The Type Z has two inputs, A and B, plus a precision comparison voltage, V<sub>C</sub>, that is | The Type Z has two inputs, A and B, plus a precision comparison voltage, V<sub>C</sub>, that is | ||
adjustable from 0 to | adjustable from 0 to ±1 V, 10 V, or 100 V via a ten-turn pot. | ||
V<sub>A</sub> | The following differential amplifier can be configured to display V<sub>A</sub>, −V<sub>B</sub>, | ||
V<sub>A</sub>−V<sub>B</sub>, V<sub>A</sub>−V<sub>C</sub>, or V<sub>C</sub>−V<sub>B</sub>. | |||
This allows DC-coupled measurements of small signals with large DC offsets. | |||
Unlike later comparators, | Unlike later comparators, Type Z has separate step attenuators for each input, | ||
permitting the user to view the difference between signals of widely differing amplitudes. | permitting the user to view the difference between signals of widely differing amplitudes. | ||
Unfortunately the divider resistors have no trim, so CMRR is poor except at 50mV/div. | |||
With a pair of "Disconnect Signal" buttons, the Type Z was the first | It is also the only comparator that can handle ±100 V common mode at full sensitivity. | ||
With a pair of "Disconnect Signal" buttons, the Type Z was the first | |||
movement toward a "GND" position on the input switches. | movement toward a "GND" position on the input switches. | ||
The Type [[P6023]] probe with R and C compensation, [[introduced in 1962]], | |||
The Type [[P6023]] probe, [[introduced in 1962]] | |||
was specifically designed for the Type Z but also marketed for the Type [[G]]. | was specifically designed for the Type Z but also marketed for the Type [[G]]. | ||
==Specifications== | ==Specifications== | ||
[[Category:Specifications needed]] | Maximum sensitivity is 50 mV/div, and common-mode rejection is 40,000:1 "from DC through audio frequencies". | ||
Risetime as a general-purpose amplifier is 27 ns (13 MHz bandwidth). A side effect of Type Z's unprecedented dynamic range is that transient response is a function of signal amplitude: slew rates faster than 1V in 6ns will cause distortion due to grid current. | |||
[[Category:Specifications needed]] | |||
==Internals== | |||
The Type Z uses both tubes and transistors, capitalizing on the strengths of each. | |||
The step attenuators are [[turret attenuators]]. | |||
==Links== | ==Links== | ||
Line 51: | Line 52: | ||
<gallery> | <gallery> | ||
Tek z front.jpg|Front View | Tek Type Z front.jpg |Front view | ||
Tek z front.jpg|3/4 View | |||
Tek z 1.jpg| Front View | |||
Tek z 7.jpg | Front View | |||
Tek type z pre-prod.jpg|Pre-production Type Z with different knob color | |||
Tek z left.jpg|Left Side | Tek z left.jpg|Left Side | ||
Tek z 5.jpg | Left Side | |||
Tek_TypeZ-RHS.jpeg | Right Side | |||
Tek z 2.jpg | Right Side | |||
Tek z 3.jpg | Right Side | |||
Tek z 6.jpg | Right Side Tubes | |||
Tek_TypeZ-Top.jpeg | Top | |||
Tek z 4.jpg | Rear | |||
</gallery> | |||
==Schematic== | |||
<gallery> | |||
Tek_z_turret.png|Attenuators | Tek_z_turret.png|Attenuators | ||
Tek_z_schem.png|Main Amplifier | |||
</gallery> | </gallery> | ||
[[Category:500 series plugins]] | [[Category:500 series plugins]] | ||
[[Category:Differential amplifiers]] | [[Category:Differential amplifiers]] |
Revision as of 11:46, 13 July 2021
Template:Plugin Sidebar 2 The Tektronix Type Z is a comparator plug-in for 500-series scopes, introduced in 1960 and dropped after 1968.
The Type Z has two inputs, A and B, plus a precision comparison voltage, VC, that is adjustable from 0 to ±1 V, 10 V, or 100 V via a ten-turn pot.
The following differential amplifier can be configured to display VA, −VB, VA−VB, VA−VC, or VC−VB.
This allows DC-coupled measurements of small signals with large DC offsets.
Unlike later comparators, Type Z has separate step attenuators for each input, permitting the user to view the difference between signals of widely differing amplitudes. Unfortunately the divider resistors have no trim, so CMRR is poor except at 50mV/div.
It is also the only comparator that can handle ±100 V common mode at full sensitivity.
With a pair of "Disconnect Signal" buttons, the Type Z was the first movement toward a "GND" position on the input switches.
The Type P6023 probe with R and C compensation, introduced in 1962, was specifically designed for the Type Z but also marketed for the Type G.
Specifications
Maximum sensitivity is 50 mV/div, and common-mode rejection is 40,000:1 "from DC through audio frequencies".
Risetime as a general-purpose amplifier is 27 ns (13 MHz bandwidth). A side effect of Type Z's unprecedented dynamic range is that transient response is a function of signal amplitude: slew rates faster than 1V in 6ns will cause distortion due to grid current.
Internals
The Type Z uses both tubes and transistors, capitalizing on the strengths of each.
The step attenuators are turret attenuators.
Links
Pictures
-
Front view
-
3/4 View
-
Front View
-
Front View
-
Pre-production Type Z with different knob color
-
Left Side
-
Left Side
-
Right Side
-
Right Side
-
Right Side
-
Right Side Tubes
-
Top
-
Rear
Schematic
-
Attenuators
-
Main Amplifier