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{{Plugin Sidebar 2| | |||
title=Tektronix Type Z| | |||
summary=Comparator preamp plug-in| | |||
image=Tek Type Z front.jpg | | |||
caption=Type Z front view| | |||
introduced=1960 | | |||
discontinued=1969 | | |||
series=[[500-series scopes]]| | |||
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)]] | |||
}} | |||
The '''Tektronix Type Z''' is a comparator plug-in for [[500-series scopes]], [[introduced in 1960]] and dropped after 1968. | |||
Type Z has two inputs, A and B, plus a precision comparison voltage, | 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. | ||
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. | |||
Type Z | 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. | |||
* http:// | 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. | |||
[[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== | |||
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/Z.html Type Z @ amplifier.cd] | |||
==Pictures== | |||
<gallery> | |||
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 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_schem.png|Main Amplifier | |||
</gallery> | |||
[[Category:500 series plugins]] | |||
[[Category:Differential amplifiers]] |
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