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The Tektronix Type G is a plug-in differential amplifier for [[500-series scopes]].
{{Plugin Sidebar 2 |
title=Tektronix Type G |
summary=20 MHz differential amplifier|
image=type g.jpg |
caption=Type G front view|
introduced=1955 |
discontinued=1971 |
series=[[500-series scopes]]|
manuals=
* [http://w140.com/tek_g.pdf Tektronix Type 53G Manual (PDF)]
<!-- * [http://w140.com/tek_fcp/tek_type_g_factory_cal_proc.pdf Tektronix Type 53G Factory Calibration Procedure (PDF)] -->
* [[Media:tek_type_g_manual.pdf|Tektronix Type 53G Manual (PDF, OCR, bad-OCR)]]
* [[Media:Tek type g.pdf|Tektronix Type G Manual (PDF, needs OCR)]]
* [[Media:tek_type_g_fcp.pdf|Tektronix Type G Factory Calibration Procedure (PDF, OCR)]]
* [[Media:Tek type g cal outline.pdf|Tektronix Type G Calibration Outline (PDF, OCR)]]
}}
The '''Tektronix Type G''' is a plug-in differential amplifier for [[500-series scopes]].


Unlike Type [[D]], Type G is optimized for RF, achieving only a 100 to 1 common-mode
Unlike the [[D|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.
rejection ratio but maintaining it all the way to 20 MHz.   
It has seven tubes.
Unlike "comparator" plug-ins such as the [[W|Type W]] and [[Z|Type Z]],
the Type G does not contain an internal precision variable voltage source. 
It is for measuring the difference between two externally applied input signals.
Its maximum sensitivity is 50 mV/div. It has seven tubes. (The early, slower 53G has five tubes.)


Its name changed twice.  Type 53G was [[introduced in 1955|introduced in March 1955]] along with the
Its name changed twice.  Type 53G was [[introduced in 1955|introduced in March 1955]] along with the
[[541]]/[[545]], but it was only spec'ed to 10MHz in a [[535]], and its
[[541]]/[[545]], but it was only specified to 10 MHz in a [[535]], and its
performance in a fast mainframe was not documented.  When the mainframe cabinet styles
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
were revamped in August 1956, the Types 53[[A]], 53[[B]], 53[[C]] and 53G were
all upgraded (sped up) and renamed; Type 53G became Type 53/54G.  It was the only
all upgraded (sped up) and renamed; Type 53G became Type 53/54G.  It was the only
early plugin that did not go through the awkward "53x/54x" phase.
early plug-in that did not go through the awkward "53x/54x" phase.
In 1959 it became Type G with no further change in design.  It was dropped after 1970.
In 1959 it became Type G with no further change in design.  It was dropped after 1970.
[[K]], [[L]], and [[T]] are tied for longest production life, at 16 years.
[[B]], [[D]], and [[G]] are next at 15 years.


Types G and [[K]] are the only letter-series plugins
Types G and [[K]] are the only letter-series plugins
where the Gain vernier is not concentric with the step attenuator.
where the Gain vernier is not concentric with the step attenuator.


* http://w140.com/tek_fcp/tek_type_g_factory_cal_proc.pdf
==Specifications==
* http://w140.com/tek_g.pdf
[[Category:Specifications needed]] ''please add''
 
==Pictures==
 
<gallery>
Type g.jpg
Type g side2.jpg
Type g side.jpg
Type g sidec.jpg
Type g top.jpg
Tek type g with box.jpg|Type G with original box
1967 Tek Plugin G 1lr.JPG|Photo courtesy of Dan Wilson (Hideaway Studio)
1967 Tek Plugin G 3lr.JPG|Photo courtesy of Dan Wilson (Hideaway Studio)
1967 Tek Plugin G 4lr.JPG|Photo courtesy of Dan Wilson (Hideaway Studio)
Tek g schem.png| 53G Schematic
Tek type g schematic.png| Type G schematic
</gallery>
 
[[Category:500 series plugins]]
[[Category:Differential amplifiers]]

Revision as of 17:51, 25 June 2021

Template:Plugin Sidebar 2 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 maintaining it all the way to 20 MHz. Unlike "comparator" plug-ins such as the Type W and Type Z, the Type G does not contain an internal precision variable voltage source. It is for measuring the difference between two externally applied input signals. Its maximum sensitivity is 50 mV/div. It has seven tubes. (The early, slower 53G has five tubes.)

Its name changed twice. Type 53G was introduced in March 1955 along with the 541/545, but it was only specified to 10 MHz 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 53A, 53B, 53C and 53G were all upgraded (sped up) and renamed; Type 53G became Type 53/54G. It was the only early plug-in that did not go through the awkward "53x/54x" phase. In 1959 it became Type G with no further change in design. It was dropped after 1970.

K, L, and T are tied for longest production life, at 16 years. B, D, and G are next at 15 years.

Types G and K are the only letter-series plugins where the Gain vernier is not concentric with the step attenuator.

Specifications

please add

Pictures