Difference between revisions of "Z"

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* [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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The Tektronix Type Z is a comparator plug-in for [[500-series scopes]].
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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
 
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.
 
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.   
 
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
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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
 
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.
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amplifier is 27 ns (13 MHz 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, 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

Revision as of 14:22, 21 August 2014

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

Compatible with 500-series scopes

Produced from 1960 to 1968

Manuals
Manuals – Specifications – Links – Pictures

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 7ns.

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. It's possible to view VA, -VB, VA-VB, VA-VC, or VC-VB.

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, introduced in 1962 with R and C compensation, was specifically designed for the Type Z but also marketed for the Type G.

Specifications

please add

Pictures