465M: Difference between revisions

Revision as of 01:52, 17 August 2021

Tektronix 465M
100 MHz dual channel portable scope Tektronix 465M Produced from 1977 to (?) Manuals Tektronix 465M Service Manual 465M schematics 465M schematics (PDF, OCR, no-OCR) (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

465M teardown @ YouTube
Tektronix 465M Part 1 - Intro and DC tests @ YouTube
Tektronix 465M Analog Oscilloscope Repair And Checkout @ YouTube

Pictures

Tek 465M Front Panel
Tek 465M Delayed Sweep
Tek 465M - Internal Plugins
Tek 465M - H Plugin Assy.Board A6 to A10 - Side View
Tek 465M - H Plugin Assy.Board A6 to A10 - Side View
Tek 465M - H Plugin Assy, Board A6 to A10 - Front View
H Plugin Assy, Board A6 to A10 - Front View
Tek 465M Vertical Plug-in Assy- Boards A1-A5
Tek 465M Vertical Plug-in Assy- Boards A1-A5
Tek 465M Delay Line In Vertical Module
Tek 465M Delay Line In Vertical Module
Tek 465M Side View without H Plug-in
Tek 465M without Internal Plug-Ins
Tek 465M Side View without V Plug-in
Tek 465M Side View without Internal Plug-Ins
Tek 465M Power and HV Transformer
Tek 465M - A11 Board - Soldered Transistors (Not socketed)

Custom ICs used in the 465M

Page	Model	Part nos	Description	Designers	Used in
155-0151-00	M159	155-0151-00	trigger generator		465M
155-0155-00	155-0155-00	155-0155-00	pre-amplifier		455 • 465M
203-0130-90	M130	203-0130-90	preamplifier	Jim Woo	455 • 465M • 155-0155-00 • 155-0161-00

@@ Line 15: / Line 15: @@
 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==
 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.
@@ Line 66: / Line 59: @@
 </gallery>
+{{Custom ICs|465M}}
 [[Category:400 series scopes]]
 [[Category:Specifications needed]]