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The Tektronix Type 127 is a power supply and preamplifier for two [[letter-series and 1-series plug-ins|letter-series or 1-series plug-ins]]. | The Tektronix Type 127 is a power supply and preamplifier for two [[letter-series and 1-series plug-ins|letter-series or 1-series plug-ins]]. | ||
It is a rack-mount unit with a power supply that resembles the power supply of an early | It is a rack-mount unit with a power supply that resembles the power supply of an early | ||
500-series oscilloscope: a 50/60Hz transformer, [[selenium rectifiers]], a single voltage reference tube controlling | [[500-series scopes|500-series oscilloscope]]: a 50/60Hz transformer, [[selenium rectifiers]], a single voltage reference tube controlling | ||
all output voltages, and [[6080]] pass tubes for the regulated outputs. The 127 contains a | all output voltages, and [[6080]] pass tubes for the regulated outputs. The 127 contains a | ||
fully differential DC-coupled 15MHz amplifier for each channel with cathode follower outputs | fully differential DC-coupled 15MHz amplifier for each channel with cathode follower outputs | ||
on the front and rear panels. The manual is on [[http://bama.edebris.com/manuals/tek/127 BAMA]]. | on the front and rear panels. The manual is on [[http://bama.edebris.com/manuals/tek/127 BAMA]]. | ||