468: Difference between revisions

Revision as of 23:30, 22 March 2021

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10/100 MHz Digital Storage Scope Tek 468 Produced from 1980 to 1985 Manuals Tektronix 468 manuals (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 468 is a digital/analog scope, essentially a 465B with an added 25 MS/s 8 bit digitizer.

Specifications

Digital mode: Sampling rate 25 MS/s, bandwidth 10 MHz (sine)/2.5 MHz (pulse), resolution 8 bit
Analog mode: 100 MHz bandwidth
GPIB option
please add more ...

Repair issues

Many 468s used Mostek MKB36000 masked ROMs that can suffer from "ROM rot". It may be necessary to replace the 160-0459-01 and 160-0759-01 ROMs with 2764 EPROMs through a 2364/2764 adapter. Another option might be using the MCM68766 EPROM.

replaced ROM by 2764 with homemade 2364/2764 adapter
Result of bad ROM by verification-check.

ROM images

A16 STORAGE-DISPLAY Circuit Board Replacement ERROR in SERVICE Manual Schematic and Parts list (See Repairs)

Links

Pictures

front
top
Storage & Display A16
right
left
bottom
rear
Storage Boards
CPU Board A21
Memory Board A18

@@ Line 50: / Line 50: @@
 Storage Boards.JPG|Storage Boards
 CPU Board.JPG|CPU Board A21
+Memory Board A18.JPG|Memory Board A18
 </gallery>