1A7: Difference between revisions

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image=Tek 1a7a 2.JPG |
image=Tek 1a7a 2.JPG |
caption=Tektronix 1A7A |
caption=Tektronix 1A7A |
introduced=1966 |
introduced=1965 |
discontinued=(?) |
discontinued=1975 |
series=[[500-series scopes]] |
series=[[500-series scopes]] |
manuals=
manuals=
* [http://w140.com/mmm/tek-1a7.pdf Tektronix 1A7 Manual (PDF)]
* [http://w140.com/mmm/tek-1a7.pdf Tektronix 1A7 Manual (PDF)]
* [http://w140.com/tek_1a7a.pdf Tektronix 1A7A Manual (PDF)]
* [http://w140.com/tek_1a7a.pdf Tektronix 1A7A Manual (PDF)]
* [[Media:Tek 1a7a product reference book.pdf|Tektronix 1A7A Product Reference Book (PDF)]]
* [[Media:Tek 1a7a fcp april 1968.pdf|Tektronix 1A7A Factory Calibration Procedure, April 1968]]
}}
}}
The '''Tektronix Type 1A7''' is a high-sensitivity differential plug-in for [[500-series scopes]].
The '''Tektronix Type 1A7''' is a high-sensitivity differential plug-in for [[500-series scopes]].
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heater voltages on the 7586's.
heater voltages on the 7586's.


Type 1A7 was designed by [[John Addis]] and [[introduced in 1966]].   
Type 1A7 (initially named [[F|Type F]]) was designed by [[John Addis]] and [[introduced in 1966]].   


====Type 1A7A====
====Type 1A7A====
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The 1A7A's differential amplifier design was re-used with some modifications
The 1A7A's differential amplifier design was re-used with some modifications
in the [[3A9]], [[7A22]], [[5A22N]], [[AM502]], and [[5030]]/[[5031]]. ''(26A2 too? - schematics needed)''
in the [[3A9]], [[3A10]], [[7A22]], [[5A22N]] and [[5030]]/[[5031]] scopes. The [[AM502]] and [[26A2]] use BJTs instead of JFETs for the offset current sources.


Type 1A7A remained available until the end of the [[500-series scopes|500-series]] line after 1974.
Type 1A7A remained available until the end of the [[500-series scopes|500-series]] line.


{{BeginSpecs}}
{{BeginSpecs}}
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==Pictures==
==Pictures==
===1A7===
<gallery>
Tek 1a7 front.jpg
Tek 1a7 top.jpg
Tek 1a7 right.jpg
Tek 1a7 left.jpg
Tek 1a7 bottom2.jpg
Tek 1a7 bottom.jpg
Tek 1a7 in 133 1.jpg|1A7 in [[133]]
Tek 1a7 in 133 2.jpg|1A7 in [[133]]
Tek 1a7 in 133 3.jpg|1A7 in [[133]]
Tek 1a7 top2.jpg|1A7
Tek 1a7 right2.jpg|1A7
Tek 1a7 left2.jpg|1A7
Tek 1a7 left rear2.jpg|1A7
Tek 1a7 front2.jpg|1A7
</gallery>
===1A7A===
<gallery>
<gallery>
Tek 1a7a 1.JPG|1A7A
Tek 1a7a 1.JPG|1A7A
Tek 1a7a bf.jpg|1A7A
Tek 1a7a 2.JPG|1A7A
Tek 1a7a 2.JPG|1A7A
Tek 1a7a 3.JPG|1A7A
Tek 1a7a 3.JPG|1A7A
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[[Category:Introduced in 1966]]
[[Category:Introduced in 1966]]
[[Category:500 series plugins]]
[[Category:500 series plugins]]
[[Category:Differential amplifiers]]

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