465M: Difference between revisions

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image=Tek 465m 1.jpg |
image=Tek 465m 1.jpg |
caption=Tektronix 465M |
caption=Tektronix 465M |
introduced=(?) |
introduced=1977 |
discontinued=(?) |
discontinued=(?) |
manuals=
manuals=
* [http://www.ko4bb.com/manuals/index.php?dir=Tektronix/Tektronix_-_465M_Oscilloscope Tektronix 465M Service Manual]   
* [http://www.ko4bb.com/getsimple/index.php?id=manuals&dir=Tektronix/Tektronix_-_465M_Oscilloscope Tektronix 465M Service Manual]   
* [[Media:465M schematics.pdf|465M schematics]]
 
* [[Media:tek_465M_schematics.pdf|465M schematics (PDF, OCR, no-OCR)]]
}}
}}
The '''Tektronix 465M''' is a 100 MHz dual-channel portable scope, essentially a 100 MHz bandwidth scope in a the cabinet of a [[455]]. A large user of the 465Ms was the Federal Aviation Administration.  
The '''Tektronix 465M''' is a 100 MHz dual-channel portable scope, the commercial version of the AN/USM 425 standard military scope.
 
It is essentially a 100 MHz bandwidth scope in the cabinet of a [[455]].
A large user of the 465Ms was the Federal Aviation Administration.  


==Internals==
==Internals==
The construction methods of the 455, 465M and the [[900-series_scopes|T900 series]] are similar.   
The construction methods of the 455, 465M and the [[T900-series scopes|T900 series]] are similar.   
In contrast to typical 400-series portable scopes, which use socketed semiconductors,  
In contrast to typical 400-series portable scopes, which use socketed semiconductors,  
the 465M's semiconductors are soldered in place, giving it a theoretical reliability advantage.
the 465M's semiconductors are soldered in place, giving it a theoretical reliability advantage.
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==Links==
==Links==
* [http://www.youtube.com/watch?v=qAZOi5DsMcw Tektronix 465M Part 1 - Intro and DC tests - YouTube]
* [https://www.youtube.com/watch?v=DLHN4PYxV3A 465M teardown] @ YouTube  
* [http://www.spurtikus.de/basteln/repair/tek465/index.html Repairing a 465 (power supply, z axis amplifier, vertical pre amplifier issues)] - nice internal photos
* [https://www.youtube.com/watch?v=qAZOi5DsMcw Tektronix 465M Part 1 - Intro and DC tests] @ YouTube
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/465.htm Tek 465 page @ amplifier.cd]
* [https://www.youtube.com/watch?v=4uDw6F06D1I Tektronix 465M Analog Oscilloscope Repair And Checkout] @ YouTube
* [http://dangerousprototypes.com/2012/03/19/tektronix-465-oscilloscope-teardown/ Tek 456 "teardown"]


==Pictures==
==Pictures==
<gallery>
<gallery>
File:Tek 465m 1.jpg
Tek 465m 1.jpg
File:Tek 465m 2.jpg
Tek 465m two triag.jpg
File:Tek 465m 3.jpg
Tek 465m 2.jpg
Tek 465m 3.jpg
Tek_465M-Front.jpg | Tek 465M Front Panel
Tek_465M-Del-Sweep.jpg | Tek 465M Delayed Sweep
Tek_465M_Without-Modules.png |Tek 465M - Internal Plugins
Tek_465M-H-Plug-in3.jpg | Tek 465M - H Plugin Assy.Board A6 to A10 - Side View
Tek_465M-H-Plug-in4.jpg | Tek 465M - H Plugin Assy.Board A6 to A10 - Side View
Tek_465M-H-Plug-in1.jpg | Tek 465M - H Plugin Assy, Board A6 to A10 - Front View
Tek_465M-H-Plug-in2.jpg| H Plugin Assy, Board A6 to A10 - Front View
Tek_465M-VertModules-A1-A5jpg.jpg | Tek 465M Vertical Plug-in Assy- Boards A1-A5
Tek_465M-Vert-Plug-in.jpg | Tek 465M Vertical Plug-in Assy- Boards A1-A5
Tek_465M-DelayLine1.jpg |  Tek 465M Delay Line In Vertical Module
Tek_465M-DelayLine2.jpg | Tek 465M Delay Line In Vertical Module
Tek_465M-Side2-Noplug-in.jpg | Tek 465M  Side View without H Plug-in
Tek_465M-Front-No-Plugin.jpg | Tek 465M without Internal Plug-Ins
Tek_465M-Side1-No-Plug-in.jpg | Tek 465M Side View without V Plug-in
Tek_465M-Top-Noplug-in.jpg | Tek 465M Side View without Internal Plug-Ins
Tek_465M-Power-HV-Trans.jpg | Tek 465M Power and HV Transformer
Tek_465M-A11-Soldered.jpg | Tek 465M - A11 Board - Soldered Transistors (Not socketed)
</gallery>
</gallery>



Revision as of 03:24, 16 August 2019

{{{manufacturer}}} 
100 MHz dual channel portable scope
Tektronix 465M

Produced from 1977 to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 465M is a 100 MHz dual-channel portable scope, the commercial version of the AN/USM 425 standard military scope.

It is essentially a 100 MHz bandwidth scope in the cabinet of a 455. A large user of the 465Ms was the Federal Aviation Administration.

Internals

The construction methods of the 455, 465M and the T900 series are similar. In contrast to typical 400-series portable scopes, which use socketed semiconductors, the 465M's semiconductors are soldered in place, giving it a theoretical reliability advantage.

The front panel layout of the 465M is nearly identical in appearance and function to that of the 465.

Since the vertical preamplifier and trigger/sweep unit are implemented as plug-in modules, one might guess that there would be other implementations of those functions, but there weren't - what you see is what was made.

There never was a single-channel vertical amplifier or a single timebase module made, although some may have been originally on the drawing board.

Whether or not the 465M was more reliable than the original 465 is unknown.

Links

Pictures