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The '''Tektronix 465M''' is a 100 MHz dual-channel portable scope, the commercial version of the AN/USM 425 standard military scope. | 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]]. | 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. | ||
A large user of the 465Ms was the Federal Aviation Administration. | |||
==Internals== | ==Internals== | ||
The construction methods of the 455, 465M and the [[T900-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. | |||
The front panel layout of the 465M is nearly identical in appearance and function | The front panel layout of the 465M is nearly identical in appearance and function to that of the 465. | ||
to that of the 465. | |||
Since the vertical preamplifier and trigger/sweep unit | 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. | ||
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, | There never was a single-channel vertical amplifier or a single timebase module made, although some may have been originally on the drawing board. | ||
although some may have been originally on the drawing board. | |||
Whether or not the 465M was more reliable than the original 465 is unknown. | Whether or not the 465M was more reliable than the original 465 is unknown. | ||
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</gallery> | </gallery> | ||
{{Custom ICs|465M}} | |||
[[Category:400 series scopes]] | [[Category:400 series scopes]] | ||
[[Category:Specifications needed]] | [[Category:Specifications needed]] | ||