Z: Difference between revisions

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 Tektronix Type Z Manual (OCR) Tektronix Type Z Factory Calibration Procedure Tektronix Type Z Calibration Outline (OCR) (All manuals in PDF format unless noted otherwise)

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, V_C, 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 V_A, −V_B, V_A−V_B, V_A−V_C, or V_C−V_B.

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

Type Z @ amplifier.cd

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

Schematics

Attenuators
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

@@ Line 1: / Line 1: @@
-The Tektronix Type Z is a comparator plug-in for [[500-series scopes]].
+{{Plugin Sidebar
-Its two main subsystems are a differential amplifier and a precision variable
+|manufacturer=Tektronix
-DC voltage source, which can be used as one of the amplifier inputs.
+|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, V<sub>C</sub>, 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 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.
-Its maximum sensitivity is 50mV/div, and it achieves 40,000 to 1 common-mode
-rejection at DC and low frequencies.  Its risetime as a general-purpose
-amplifier is 27ns (13MHz bandwidth), but it can track a common-mode risetime of 7ns.
-The Type Z has two inputs, A and B, plus a precision comparison voltage, Vc, that is
+Unlike later comparators, Type Z has separate step attenuators for each input,
-adjustable from 0 to +/-1V, 10V, or 100V via a ten-turn pot.  It's possible to
+permitting the user to view the difference between signals of widely differing amplitudes.
-view A, -B, A-B, A-Vc, or Vc-B.
+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".
-Unlike later comparators, it has a separate step attenuator for each input,
+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.
-permitting you to view the difference between signals of widely differing amplitudes.
-It is also the only comparator that can handle +/- 100V common mode at full sensitivity.
-The Type Z uses two [[turret attenuators]].
-With a pair of "Disconnect Signal" buttons, the Type Z was the first of the movement toward a "Gnd"
+[[Category:Specifications needed]]
-position on the input switches.
-The Type Z was [[introduced in 1960]] and uses both tubes and transistors,
+==Internals==
-capitalizing on the strengths of each.  It was dropped after 1968.
+The Type Z uses both tubes and transistors, capitalizing on the strengths of each.
-The Type [[P6023]] probe, [[introduced in 1962]] with R and C compensation,
+The step attenuators are [[turret attenuators]].
-was specifically designed for the Type Z but also marketed for the Type [[G]].
+==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]
-* [http://bama.edebris.com/manuals/tek/z/ Tektronix Type Z Manual (BAMA)]
+==Pictures==
-* [http://w140.com/tek_fcp/tek_type_z_factory_cal_proc.pdf Tektronix Type Z Factory Calibration Procedure (PDF)]
 <gallery>
-Image:Tek z front.jpg|Front View
+Tek Type Z front.jpg |Front view
-Image:Tek z left.jpg|Left Side
+Tek z front.jpg|3/4 View
-File:Tek_z_schem.png|Schematic
+Tek z 1.jpg| Front View
-File:Tek_z_turret.png|Attenuators
+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]]