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Tektronix 465M
100 MHz dual channel portable scope
Tektronix 465M

Produced from 1977 to (?)


Alternate copies

(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.


Documents Referencing 465M

Document Class Title Authors Year Links
Tekscope 1977 V9 N2.pdf Article New Products 1977


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.



Some Parts Used in the 465M

Part Part Number(s) Class Description Used in
154-0777-00 154-0777-00 CRT CRT 465M
155-0151-00 155-0151-00 Monolithic integrated circuit trigger generator 465M
155-0155-00 155-0155-00 Hybrid integrated circuit pre-amplifier 455 465M
203-0130-90 203-0130-90 Monolithic integrated circuit preamplifier 455 465M 155-0155-00 155-0161-00