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* [ | * [[Media:070-284.pdf|Tektronix 127 Manual]] (PDF) | ||
* [ | * [https://w140.com/tek_fcp/tek_type_127_factory_cal_proc.pdf Tektronix 127 Factory Calibration Procedure (PDF)] | ||
* [ | * [https://w140.com/tek_127_1968_catalog.pdf Tektronix 127 in 1968 Catalog (PDF)] | ||
}} | }} | ||
The '''Tektronix Type 127''' "Preamplifier Power Supply", [[introduced in 1958]] and made until 1971, is a power supply, calibrator, and unity-gain preamplifier for two [[letter-series and 1-series plug-ins|letter-series or 1-series plug-ins]]. | The '''Tektronix Type 127''' "Preamplifier Power Supply", [[introduced in 1958]] and made until 1971, is a power supply, calibrator, and unity-gain preamplifier for two [[letter-series and 1-series plug-ins|letter-series or 1-series plug-ins]]. |