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[[File:Tek 067-0502-01.JPG | thumb | 350px |right]] | [[File:Tek 067-0502-01.JPG | thumb | 350px |right]] | ||
The '''Tektronix 067-0502- | 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. | 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 | The comparison is performed using an [[Airpax A175]] chopper to switch | ||
Line 8: | Line 8: | ||
The resulting output is a rectangular waveform | The resulting output is a rectangular waveform | ||
with amplitude equal to the difference of two voltages. | with amplitude equal to the difference of two voltages. | ||
This waveform can be amplified and viewed on an oscilloscope. | 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 | 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 | 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== | ==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== | ==Pictures== | ||
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067-0502-01 schem.png|067-0502-01 Schematic | 067-0502-01 schem.png|067-0502-01 Schematic | ||
Tek 067-0502.JPG|067-0502 | 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:Calibration fixtures]] | ||
[[Category:Pulse generators]] | [[Category:Pulse generators]] |