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The Tektronix Type Z is a comparator plug-in for [[500-series scopes]] | {{Plugin Sidebar | ||
|manufacturer=Tektronix | |||
|series=500-series scopes | |||
|type=Type Z | |||
|summary=Comparator preamp plug-in | |||
|image=Tek Type Z front.jpg | |||
|caption=Type Z front view | |||
|introduced=1960 | |||
|discontinued=1969 | |||
|designers=Charlie Rhodes;Ron Olson | |||
|manuals= | |||
* [[Media:070-251.pdf|Tektronix Type Z Manual]] (OCR) | |||
* [[Media:tek_type_z_fcp.pdf|Tektronix Type Z Factory Calibration Procedure]] | |||
* [[Media:Tek type z cal outline.pdf|Tektronix Type Z Calibration Outline]] (OCR) | |||
}} | |||
The '''Tektronix Type Z''' is a comparator plug-in for [[500-series scopes]], [[introduced in 1960]] and dropped after 1968. | |||
It was designed by [[Charlie Rhodes]] and [[Ron Olson]]. | |||
The 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. | |||
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. | |||
The Type [[P6023]] probe, [[introduced in 1962]] | 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]]. | was specifically designed for the Type Z but also marketed for the Type [[G]]. | ||
* [http:// | ==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]]. | |||
==Prices== | |||
* $525 in 1962 (~$5,300 in 2023 dollars) | |||
==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 | |||
Tek type z front2.jpeg | |||
</gallery> | |||
===Schematics=== | |||
<gallery> | |||
Tek_z_turret.png|Attenuators | |||
Tek_z_schem.png|Main Amplifier | |||
</gallery> | |||
==Components== | |||
{{Parts|Z}} | |||
[[Category:500 series plugins]] | |||
[[Category:Differential amplifiers]] |