067-0502-01: Difference between revisions

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The Tektronix 067-0502-01 is a instrument that can be used to produce a reference rectangle
[[File:Tek 067-0502-01.JPG | thumb | 350px |right]]
The '''Tektronix 067-0502-01 Amplitude Calibrator and Comparator''' is an instrument that can be used to produce a reference rectangle
voltage or current waveform and/or to compare an external unknown input with an internal or  
voltage or current waveform and/or to compare an external unknown input with an internal or  
external reference. The comparison if performed using an [[Airpax A175]] chopper with switch
external reference. The output voltage is only accurate if terminated in 1 MΩ, the 50 V setting will experience the highest error if not properly terminated (0.5% in an open load).
the output between the two voltages that are being compared.  The resulting output can be  
 
amplified and viewed on an oscilloscope. It is a well known and trusted technique,
The comparison is performed using an [[Airpax A175]] chopper to switch
the use of a chopper to make precise DC measurements using instruments that are sensitive
between the two voltages that are being compared.   
to AC, but not capable of drift-free DC performance.
The resulting output is a rectangular waveform
with amplitude equal to the difference of two voltages. 
This waveform can be amplified using a drift-free AC amplifier and viewed on an oscilloscope for high sensitivity comparison.
 
See the [[067-0502-00]] page for a comparison of the -00 and -01 models.
 
The HV supply uses a tube V427, to regulate the +300V supply. The manual lists V427 as a [[7734]], a triode-pentode, however some models contain a small circular adapter board (670-1860-00,388-2423-00) to adapt the [[B9A_base|noval tube socket]] to a [[Compactron_base|Compactron socket]] and use a [[6G11]] double pentode instead. The adapter PCB connects the screen grid and plate of the beam power tube together in a triode configuration. These models also have [[6G11]] printed below V427 on the chassis.
 
The output amplitude can be reduced down to 0.2 μV using the [[067-0529-00]] 1000:1 precision divider.
 
{{BeginSpecs}}
{{Spec | Output Signal | DC+, DC-, Squarewave}}
{{Spec | Amplitude Range | 0.2 mV to 100 V in 1-2-5 sequence, 5mA in current loop}}
{{Spec | Amplitude Accuracy | Within 0.25% into 1 MΩ load}}
{{Spec | Squarewave Repetition Rate | 1 kHz within 20% }}
{{Spec | Maximum Input Voltage | 100 V }}
{{EndSpecs}}
 
==Manuals==


* [http://w140.com/tek-067-0502-01.pdf Tektronix 067-0502-01 Manual (PDF)]
* [http://w140.com/tek-067-0502-01.pdf Tektronix 067-0502-01 Manual (PDF)]
* [[Media:062-1105-00.pdf|Tektronix 067-0502-01 Manual (PDF, OCR)]]
==Pictures==


<gallery>
<gallery>
Image:067-0502-01 schem.png
Tek 067-0502-01.JPG|067-0502-01
067-0502-01 schem.png|067-0502-01 Schematic
Tek 067-0502.JPG|067-0502
Tek 067-0502-01 rear.jpg|067-0502-01 rear
Tek 067-0502-01 bottom.jpg|067-0502-01 bottom
Tek 067-0502-01 front.jpg|067-0502-01 front
067-0502-01-interior.jpg|067-0502-01 internal view
067-0502-01-interior_det.jpg|067-0502-01 internal detail with 6G11 as V427
</gallery>
</gallery>
[[Category:Calibration fixtures]]
[[Category:Pulse generators]]

Revision as of 06:40, 27 October 2020

The Tektronix 067-0502-01 Amplitude Calibrator and Comparator is an instrument that can be used to produce a reference rectangle voltage or current waveform and/or to compare an external unknown input with an internal or external reference. The output voltage is only accurate if terminated in 1 MΩ, the 50 V setting will experience the highest error if not properly terminated (0.5% in an open load).

The comparison is performed using an Airpax A175 chopper to switch between the two voltages that are being compared. The resulting output is a rectangular waveform with amplitude equal to the difference of two voltages. This waveform can be amplified using a drift-free AC amplifier and viewed on an oscilloscope for high sensitivity comparison.

See the 067-0502-00 page for a comparison of the -00 and -01 models.

The HV supply uses a tube V427, to regulate the +300V supply. The manual lists V427 as a 7734, a triode-pentode, however some models contain a small circular adapter board (670-1860-00,388-2423-00) to adapt the noval tube socket to a Compactron socket and use a 6G11 double pentode instead. The adapter PCB connects the screen grid and plate of the beam power tube together in a triode configuration. These models also have 6G11 printed below V427 on the chassis.

The output amplitude can be reduced down to 0.2 μV using the 067-0529-00 1000:1 precision divider.

Key Specifications

Output Signal DC+, DC-, Squarewave
Amplitude Range 0.2 mV to 100 V in 1-2-5 sequence, 5mA in current loop
Amplitude Accuracy Within 0.25% into 1 MΩ load
Squarewave Repetition Rate 1 kHz within 20%
Maximum Input Voltage 100 V

Manuals

Pictures