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{{Plugin Sidebar 2|
{{Plugin Sidebar  
title=Tektronix Type Z|
|manufacturer=Tektronix
summary=Comparator preamp plug-in|
|series=500-series scopes
image=Tek z front.jpg |  
|type=Type Z
caption=Type Z front view|
|summary=Comparator preamp plug-in
introduced=1960 |
|image=Tek Type Z front.jpg
discontinued=1969 |
|caption=Type Z front view
series=[[500-series scopes]]|
|introduced=1960  
manuals=
|discontinued=1969  
* [http://w140.com/mmm/tek-z.pdf Tektronix Type Z Manual (PDF)]
|designers=Charlie Rhodes;Ron Olson
* [http://bama.edebris.com/manuals/tek/z/ Tektronix Type Z Manual (BAMA, offline?)]
|manuals=
* [http://w140.com/tek_fcp/tek_type_z_factory_cal_proc.pdf Tektronix Type Z Factory Calibration Procedure (PDF)]
* [[Media:070-251.pdf|Tektronix Type Z Manual]] (OCR)
 
* [[Media:tek_type_z_fcp.pdf|Tektronix Type Z Factory Calibration Procedure]]
* [[Media:070-251.pdf|Tektronix Type Z Manual (PDF, OCR)]]
* [[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]].
The '''Tektronix Type Z''' is a comparator plug-in for [[500-series scopes]], [[introduced in 1960]] and dropped after 1968.
Its two main subsystems are a differential amplifier and a precision variable
It was designed by [[Charlie Rhodes]] and [[Ron Olson]].
DC voltage source, which can be used as one of the amplifier inputs.
This allows DC-coupled measurements of small signals with large DC offsets.
Its maximum sensitivity is 50 mV/div, and it achieves 40,000 to 1 common-mode
rejection at DC and low frequencies.  Its risetime as a general-purpose
amplifier is 27 ns (13 MHz bandwidth), but it can track a common-mode risetime of 7 ns.


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 +/-1 V, 10 V, or 100 V via a ten-turn pot.  It's possible to
adjustable from 0 to ±1 V, 10 V, or 100 V via a ten-turn pot.   
view 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>.
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, it has a separate step attenuator for each input,
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.
It is also the only comparator that can handle +/- 100 V common mode at full sensitivity.
Unfortunately the divider resistors have no trim, so CMRR is poor except at 50mV/div.
The Type Z uses two [[turret attenuators]].
 
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 of the
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 Z was [[introduced in 1960]] and uses both tubes and transistors,
The Type [[P6023]] probe with R and C compensation, [[introduced in 1962]],
capitalizing on the strengths of each.  It was dropped after 1968.
 
The Type [[P6023]] probe, [[introduced in 1962]] with R and C compensation,
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]] ''please add''
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==
==Links==
Line 50: Line 58:


<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_schem.png|Schematic
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_turret.png|Attenuators
Tek z 1.jpg
Tek_z_schem.png|Main Amplifier
Tek z 2.jpg
Tek z 3.jpg
Tek z 4.jpg
Tek z 5.jpg
Tek z 6.jpg
Tek z 7.jpg
</gallery>
</gallery>
==Components==
{{Parts|Z}}


[[Category:500 series plugins]]
[[Category:500 series plugins]]
[[Category:Differential amplifiers]]
[[Category:Differential amplifiers]]

Latest revision as of 07:24, 6 December 2023

Tektronix Type Z
Comparator preamp plug-in
Type Z front view

Compatible with 500-series scopes

Produced from 1960 to 1969

Manuals
Manuals – Specifications – Links – Pictures

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, 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.

Prices

  • $525 in 1962 (~$5,300 in 2023 dollars)

Links

Pictures

  • Front view

    Front view

  • 3/4 View

    3/4 View

  • Front View

    Front View

  • Front View

    Front View

  • Pre-production Type Z with different knob color

    Pre-production Type Z with different knob color

  • Left Side

    Left Side

  • Left Side

    Left Side

  • Right Side

    Right Side

  • Right Side

    Right Side

  • Right Side

    Right Side

  • Right Side Tubes

    Right Side Tubes

  • Top

    Top

  • Rear

    Rear

Schematics

  • Attenuators

    Attenuators

  • Main Amplifier

    Main Amplifier

Components

Some Parts Used in the Z

Part Part Number(s) Class Description Used in
0G3 154-0291-00 Gas Discharge Tube (Voltage regulator) 85 V voltage reference 132 • 506 • 547 • 560 • 561 • 561A • 561S • 564 • 565 • 567 • 661 • TU-4 • Z • Keithley 610
12AT7 154-0039-00 Vacuum Tube (Dual Triode) dual high-gain triode 161 • 180 • 310 • 310A • 315 • 316 • 360 • 502 • 502A • 511A • 512 • 513 • 513D • 514 • 514AD • 514D • 516 • 524 • 529 • RM529 • 544 • 546 • 547 • 556 • 565 • 570 • 3A2 • 75 • 3A75 • 1M1 • A • B • C • G • H • K • L • ML • M • N • K • R • S • Z • Keithley 610B
12AU6 154-0040-00 Vacuum Tube (Pentode) RF pentode 81 • 112 • 1L10 • 1L20 • 1L60 • 3L10 • 512 • 556 • 575 • 545 • 547 • 549 • 581 • 585 • A • B • C • G • K • H • L • ML • M • N • O • R • S • Z
6AK5 154-0014-00 • 154-0206-00 • 154-0084-00 Vacuum Tube (Pentode) RF pentode B • C • CA • G • K • L • ML • S • Z • 517 • 517A • 524
6DJ8 154-0187-00 • 154-0305-00 Vacuum Tube (Dual Triode) dual triode 067-506 • 111 • 132 • 161 • 310A • 316 • 317 • 502 • 502A • 503 • 504 • 506 • 515 • 516 • 519 • 526 • 529 • RM529 • 533 • 535 • 536 • 543 • 544 • 545 • 545A • 545B • 546 • 547 • 549 • 555 • 556 • 561A • 561S • 564 • 565 • 567 • 581 • 581A • 585 • 585A • 661 • 1A4 • 1S1 • 60 • 2A60 • 63 • 2A63 • 67 • 2B67 • 3A1 • 3A1S • 3A2 • 3A3 • 3A6 • 3A7 • 72 • 3A72 • 75 • 3A75 • 4S2 • 51 • 3B1 • 3B1S • 3B2 • 3B3 • 3B4 • 3M1 • 3S76 • 3T77 • 3T77A • 9A1 • 9A2 • 1121 • 80 • 81 • 82 • 86 • B • O • W • Z • Telequipment D56 • Telequipment S32A • Telequipment D52 • S-311 • Telequipment TD51 • Telequipment S52 • Telequipment S51 • Telequipment Type A • TU-4
RT5204 151-0058-00 Discrete component Silicon NPN transistor 565 • RM565 • Z • 2A61 • 3B1 • 3B3 • 3S76 • 3T77
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