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* [[Media:070-1089-00.pdf|Tektronix 453A Manual (PDF, OCR)]] | * [[Media:070-1089-00.pdf|Tektronix 453A Manual (PDF, OCR)]] | ||
* [[Media:Tek 453 fcp sn2k-up october 1967.pdf|Tektronix 453 Factory Calibration Procedure, October 1967 (PDF, needs OCR)]] | * [[Media:Tek 453 fcp sn2k-up october 1967.pdf|Tektronix 453 Factory Calibration Procedure, October 1967 (PDF, needs OCR)]] | ||
* [[Media:Tek 453 fcp | * [[Media:Tek 453 fcp dec 1968.pdf|Tektronix 453 Factory Calibration Procedure, December 1968 (PDF, needs OCR)]] | ||
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The '''Tektronix 453''' is a portable 50 MHz dual-trace oscilloscope [[introduced in 1965]] and produced until the mid-1970's. | The '''Tektronix 453''' is a portable 50 MHz dual-trace oscilloscope [[introduced in 1965]] and produced until the mid-1970's. |