468

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

Tektronix 468

10/100 MHz Digital Storage Scope

Produced from 1980 to 1985

Manuals

Tektronix 468 manuals @ KO4BB

GPIB Option Installation

ROM Images

File	Pos.	Checksum

(All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

Key Specifications

Bandwidth	100 MHz analog, 10 MHz digital repetitive, 2.5 MHz digital single-shot
Sampling rate	25 MS/s
Resolution	8 bit
Options	Opt.02 − GPIB (A17 board) Opt.05 − TV Sync Separator (A29 board) Opt.11 − Analog X-Y/Plotter Output (A27 board)

please add ...

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.

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

Links

Pictures

front
top and A16
Storage & Display A16
right Trigger A12
left V Preamp A11
bottom Interface Board A15
rear
Processor Board Set
Microprocessor Board A21
Memory Board A18
Timebase/Power Supply A22
Timebase Oscillator A22