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The Tektronix Type G is a plug-in differential amplifier for [[500-series]] | The Tektronix Type G is a plug-in differential amplifier for [[500-series scopes]]. | ||
Unlike the Type D, the Type G is optimized for RF, achieving only a 100 to 1 common-mode | |||
rejection ratio but operating all the way to 20MHz. Its maximum sensitivity is 50mV/div. | |||
It has seven tubes. | |||
Its name changed twice. Type 53G was introduced in March 1955 along with the | |||
[[541]]/[[545]], but it was only spec'ed to 10MHz in a [[535]], and its | |||
performance in a fast mainframe was not documented. When the mainframe cabinet styles | |||
were revamped in August 1956, the Types 53[[A]], 53[[B]], 53[[C]] and 53G were | |||
all upgraded (sped up) and renamed; the 53G became Type 53/54G. It was the only | |||
early plugin that did not go through the awkward "53x/54x" phase. | |||
In 1959 it became Type G, with no further change in design. | |||
* http://w140.com/tek_fcp/tek_type_g_factory_cal_proc.pdf | * http://w140.com/tek_fcp/tek_type_g_factory_cal_proc.pdf | ||