468: Difference between revisions
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* Digital mode: Sampling rate 25 MS/s, bandwidth 10 MHz (sine)/2.5 MHz (pulse), resolution 8 bit | * Digital mode: Sampling rate 25 MS/s, bandwidth 10 MHz (sine)/2.5 MHz (pulse), resolution 8 bit | ||
* Analog mode: 100 MHz bandwidth | * Analog mode: 100 MHz bandwidth | ||
* GPIB | * GPIB Option 02 (A17 board) | ||
* TV Sync Separator Option 05 (A29 board) | |||
* Analog X-Y/Plotter Output Option 11 (A27 board) | |||
* ''please add more'' ... [[Category:Specifications needed]] | * ''please add more'' ... [[Category:Specifications needed]] | ||
Revision as of 10:30, 23 March 2021
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 02 (A17 board)
- TV Sync Separator Option 05 (A29 board)
- Analog X-Y/Plotter Output Option 11 (A27 board)
- 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.
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replaced ROM by 2764 with homemade 2364/2764 adapter
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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
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front
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top and A16
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Storage & Display A16
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right Trigger A12
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left V Preamp A11
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bottom Interface Board A15
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rear
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Processor Board Set
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Microprocessor Board A21
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Memory Board A18
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Timebase/Power Supply A22
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Timebase Oscillator A22
