Difference between revisions of "G"

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m (53G has five tubes)
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the Type G does not contain an internal precision variable voltage source.   
 
the Type G does not contain an internal precision variable voltage source.   
 
It is for measuring the difference between two externally applied input signals.  
 
It is for measuring the difference between two externally applied input signals.  
Its maximum sensitivity is 50 mV/div.  It has seven tubes.
+
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

Revision as of 07:25, 24 October 2018

Tektronix Type G
20 MHz differential amplifier
Type G front view

Compatible with 500-series scopes

Produced from 1955 to 1971

Manuals
Manuals – Specifications – Links – Pictures

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 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