From TekWiki
Jump to navigation Jump to search
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.


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.



Custom ICs used in the 465M

Page Class Manufacturer Model Part nos Description Designers Used in
155-0151-00 Monolithic integrated circuit Tektronix M159 155-0151-00 trigger generator 465M
155-0155-00 Hybrid integrated circuit Tektronix 155-0155-00 155-0155-00 pre-amplifier 455 465M
203-0130-90 Monolithic integrated circuit Tektronix M130 203-0130-90 preamplifier Jim Woo 455 465M 155-0155-00 155-0161-00