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* [[Media:070-0639-02.pdf|Tektronix 520 Manual]] | * [[Media:070-0639-02.pdf|Tektronix 520 Manual]] | ||
* [[Media:070-1709-00.pdf|Tektronix 520A Manual]] | * [[Media:070-1709-00.pdf|Tektronix 520A Manual]] | ||
* [[Media:Tek 520 pal fcp sept 1968.pdf | Tektronix 520 PAL Factory Calibration Procedure, September 1968]] | * [[Media:Tek 520 pal fcp sept 1968.pdf | Tektronix 520 PAL Factory Calibration Procedure, September 1968]] | ||
* [https://w140.com/tek_520_cat.pdf Tektronix 520 Entry in 1968 Catalog] | * [https://w140.com/tek_520_cat.pdf Tektronix 520 Entry in 1968 Catalog] | ||
}} | }} |