468: Difference between revisions

Revision as of 01:40, 2 January 2022

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
067-0989-00.bin	Service (repl. U565)	e7a227f3
160-0459-01.bin	U565	5d9decc9
160-0759-01.bin	U575	65850940

(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.

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

@@ Line 17: / Line 17: @@
 * [http://www.hakanh.com/dl/docs/kitinstructions/040-0999-02.pdf GPIB Option Installation]
-'''ROM images'''
+{{ROM Images}}
 * [[Media:160-0459-01.bin |160-0459-01 (U565)]]
 * [[Media:160-0759-01.bin |160-0759-01 (U575)]]
@@ Line 24: / Line 24: @@
 The '''Tektronix 468''' is a digital/analog scope, essentially a [[465B]] with an added 25 MS/s 8 bit digitizer.
-==Specifications==
+{{BeginSpecs}}
-* Digital mode: Sampling rate 25 MS/s, bandwidth 10 MHz (sine)/2.5 MHz (pulse), resolution 8 bit
+{{Spec | Bandwidth | 100 MHz analog, 10 MHz digital repetitive, 2.5 MHz digital single-shot }}
-* Analog mode: 100 MHz bandwidth
+{{Spec | Sampling rate | 25 MS/s }}
-* GPIB Option 02 (A17 board)
+{{Spec | Resolution | 8 bit }}
-* TV Sync Separator Option 05 (A29 board)
+{{Spec | Options |
-*  Analog X-Y/Plotter Output Option 11 (A27 board)
+* Opt.02 − GPIB (A17 board)
+* Opt.05 − TV Sync Separator (A29 board)
-* ''please add more'' ... [[Category:Specifications needed]]
+* Opt.11 − Analog X-Y/Plotter Output (A27 board)
+}}
+{{EndSpecs}}
+* ''please add'' ... [[Category:Specifications needed]]
 ==Repair issues==