7403N: Difference between revisions

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186 bytes added ,  7 July 2015
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The '''Tektronix 7403N''' is a 65 MHz oscilloscope mainframe that takes two 7000-series vertical plug-ins  
The '''Tektronix 7403N''' is a 65 MHz oscilloscope mainframe that takes two 7000-series vertical plug-ins  
and one 7000-series horizontal plug-in.  It has a large screen, 8x10 divisions, where each division
and one 7000-series horizontal plug-in.  It has a large CRT (8 × 10 divisions @ 1.22 cm each, [[154-0640-00|154-0640-xx]] or [[154-0672-00|154-0672-xx]] tubes). There is no readout system.
is 1.22 cm. There is no readout system.


The 7403N consumes a maximum of 130 watts and uses convection cooling, no fan.  The power supply is  
The 7403N was discontinued around 1975, having been superseded largely by the popular [[7603]] introduced in 1973.
a linear design, similar to that of the [[7313]].  The 7403 weighs 30 pounds.  The vertical and  
{{MissingSpecs}}
 
The 7403N consumes a maximum of 130 watts and uses convection cooling, no fan.  It weighs 30 pounds.
 
==Internals==
The power supply is a linear design, similar to that of the [[7313]].  The vertical and  
horizontal amplifiers are made of discrete bipolar transistors.  The only integrated circuit in
horizontal amplifiers are made of discrete bipolar transistors.  The only integrated circuit in
the vertical signal path is U214, the vertical channel switch, a [[155-0022-00]].
the vertical signal path is U214, the vertical channel switch, a [[155-0022-00]].
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<gallery>
<gallery>
Image:Tek 7403n 1.jpg
File:Tek 7403n 1.jpg
Image:Tek 7403n 2.jpg
File:Tek 7403n 2.jpg
Image:Tek 7403n 3.jpg
File:Tek 7403n 3.jpg
</gallery>
</gallery>


[[Category:Specifications needed]]
[[Category:Specifications needed]]
[[Category:7000 series non-storage mainframes]]
[[Category:7000 series non-storage mainframes]]

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