Z: Difference between revisions

Revision as of 03:21, 1 February 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, 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.

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 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 at DC and low frequencies is 40,000 to 1.

Risetime as a general-purpose amplifier is 27 ns (13 MHz bandwidth), but it can track a common-mode risetime of 7 ns. please add

Internals

The Type Z uses both tubes and transistors, capitalizing on the strengths of each.

The step attenuators are turret attenuators.

Links

Type Z @ amplifier.cd

Pictures

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

@@ Line 8: / Line 8: @@
 series=[[500-series scopes]]|
 manuals=
-* [[Media:070-251.pdf|Tektronix Type Z Manual (PDF, needs OCR)]]
+* [[Media:070-251.pdf|Tektronix Type Z Manual]] (PDF, OCR)
-<!--* [http://bama.edebris.com/manuals/tek/z/ Tektronix Type Z Manual (BAMA)]-->
-<!--* [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 (PDF, OCR, bad-OCR)]]-->
-<!--* [[Media:tek_type_z_bama_manual.pdf|Tektronix Type Z Manual (BAMA, PDF, OCR, bad-OCR)]]-->
 * [[Media:tek_type_z_fcp.pdf|Tektronix Type Z Factory Calibration Procedure (PDF)]]
 }}
-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
-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
-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>.
-Unlike later comparators, it has a separate step attenuator for each input,
+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.
-It is also the only comparator that can handle ±100 V common mode at full sensitivity.
-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
 movement toward a "GND" position on the input switches.
-The Type Z was [[introduced in 1960]] and uses both tubes and transistors,
-capitalizing on the strengths of each.  It was dropped after 1968.
 The Type [[P6023]] probe with R and C compensation, [[introduced in 1962]],
@@ Line 43: / Line 33: @@
 ==Specifications==
+Maximum sensitivity is 50 mV/div, and common-mode rejection at DC and low frequencies is 40,000 to 1.
+Risetime as a general-purpose amplifier is 27 ns (13 MHz bandwidth), but it can track a common-mode risetime of 7 ns.
 [[Category:Specifications needed]] ''please add''
+==Internals==
+The Type Z uses both tubes and transistors, capitalizing on the strengths of each.
+The step attenuators are [[turret attenuators]].
 ==Links==
@@ Line 51: / Line 50: @@
 <gallery>
-Tek z front.jpg|Front View
+Tek z front.jpg|3/4 View
 Tek z 1.jpg| Front View
 Tek z 7.jpg | Front View