Z: Difference between revisions

Revision as of 06:34, 30 January 2021

Template:Plugin Sidebar 2 The Tektronix Type Z is a comparator plug-in for 500-series scopes. 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_C, that is adjustable from 0 to ±1 V, 10 V, or 100 V via a ten-turn pot. It's possible to view V_A, −V_B, V_A−V_B, V_A−V_C, or V_C−V_B.

Unlike later comparators, it has a separate step attenuator 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.

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, was specifically designed for the Type Z but also marketed for the Type G.

Specifications

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Links

Type Z @ amplifier.cd

Pictures

Front 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

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 * [[Media:070-251.pdf|Tektronix Type Z Manual (PDF, needs 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)]
+<!--* [http://w140.com/tek_fcp/tek_type_z_factory_cal_proc.pdf Tektronix Type Z Factory Calibration Procedure (PDF)]-->
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 <!--* [[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, OCR)]]
+* [[Media:tek_type_z_fcp.pdf|Tektronix Type Z Factory Calibration Procedure (PDF)]]
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 The '''Tektronix Type Z''' is a comparator plug-in for [[500-series scopes]].