465M: Difference between revisions
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* [http://www.ko4bb.com/ | * [http://www.ko4bb.com/getsimple/index.php?id=manuals&dir=Tektronix/Tektronix_-_465M_Oscilloscope Tektronix 465M Service Manual] | ||
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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, essentially a 100 MHz bandwidth scope in a the cabinet of a [[455]]. A large user of the 465Ms was the Federal Aviation Administration. | ||
Revision as of 15:53, 31 May 2015
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.
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
- Tektronix 465M Part 1 - Intro and DC tests - YouTube
- Repairing a 465 (power supply, z axis amplifier, vertical pre amplifier issues) - nice internal photos
- Tek 465 page @ amplifier.cd
- Tek 456 "teardown"
