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491: Difference between revisions
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'''Modifications and Calibration''' | '''Modifications and Calibration''' | ||
* [[Media:050-0692-03.pdf | Tektronix 491 Band C Oscillator Replacement Modification]] (OCR) | * [[Media:050-0692-03.pdf | Tektronix 491 Band C Oscillator Replacement Modification]] (OCR) | ||
* [[Media:Tek 491 mod wa.pdf | Tektronix 491 Mod WA]] (needs OCR) | * [[Media:Tek 491 mod wa.pdf | Tektronix 491 Mod WA]] (needs OCR) | ||
* [[Media:Tek 491 fcp nov 1966.pdf | Tektronix 491 Factory Calibration Procedure, November 1966]] (needs OCR) | * [[Media:Tek 491 fcp nov 1966.pdf | Tektronix 491 Factory Calibration Procedure, November 1966]] (needs OCR) | ||
</small> | </small> | ||