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Type: Posts; User: g4ugm

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  1. Replies
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    142

    If you use OC drivers do you terminate at both...

    If you use OC drivers do you terminate at both ends?
  2. Replies
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    5,536

    On any big machine with multi-ported memory it...

    On any big machine with multi-ported memory it becomes an irrelevance for real workloads. For example you could bring a Honeywell L66 or DPS8 to its knees by writing long blocks to tape. The tape...
  3. Thread: RAID Failures

    by g4ugm
    Replies
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    138

    Try some of the used ones on e-bay? They seem...

    Try some of the used ones on e-bay? They seem cheap enough assuming its 06P5741...
  4. Replies
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    1,093

    For me I can't see the point. A vintage system is...

    For me I can't see the point. A vintage system is slow because its vintage or vintage because its slow. Speeding up such systems usually breaks a few things with software timing loops. If its not...
  5. Replies
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    93

    Its not a favourite but I have a Flight-68K ...

    Its not a favourite but I have a Flight-68K

    https://www.crossware.com/Flt68k
  6. I thought that was the case. My P390 is...

    I thought that was the case. My P390 is Microchannel...
  7. I looked at getting an MP3000 some time ago but...

    I looked at getting an MP3000 some time ago but decided I didn't have space. I did collect the manuals:-

    https://1drv.ms/u/s!Ag4BJfE5B3onhZAs70jZHwS8wHydWw?e=Yvf1wN

    the service guide is in...
  8. Replies
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    1,093

    I think its feasible, but don't most accelerator...

    I think its feasible, but don't most accelerator cards replace the CPU rather than being an ISA card.....

    http://www.electronics-sourcing.com/2013/05/30/intel-amd-and-nec-x86-processors-re-created/
  9. Replies
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    141

    How much to ship to the UK?

    How much to ship to the UK?
  10. Replies
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    1,049

    I wonder where you got the US spec inverter. I...

    I wonder where you got the US spec inverter. I have a card reader that needs similar, and I can't find a suitable inverter anywhere....
  11. Replies
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    1,049

    Yes but an ASR33 needs UK gears for the different...

    Yes but an ASR33 needs UK gears for the different mains frequency (and a transformer for the voltage but thats easy)
  12. Replies
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    517

    If you are using a PC as a terminal you can...

    If you are using a PC as a terminal you can script the typing in of the boot loader.....
  13. Its been a while since I looked at this but a...

    Its been a while since I looked at this but a good friend that used to work for Analog Devices selling similar chips tells me that in many cases some of the bits are what he calls "marketing bits"...
  14. Thread: SCSI2SD Issue

    by g4ugm
    Replies
    2
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    156

    did you init it first? ...

    did you init it first?

    https://marc.vos.net/books/vms/help/initialize/
  15. Tractor/Sheet Feed dot matrix printers - UK

    Folks,

    I have a couple of spare printers

    1. Panasonic KX-P3626 wide carriage 24-pin dot matrix printer with sheet and tractor feed. Free to anyone who wants it. If needed I can throw in a box...
  16. Thread: Morse-Baudot

    by g4ugm
    Replies
    24
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    1,237

    You might want to ask about this board on the...

    You might want to ask about this board on the GreenKeys e-mail list. Its really a Teletype list but for HAMS. some one on there might have info, or if you like I can ask for you....
  17. Replies
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    306

    Does it just have normal DOS? There was a special...

    Does it just have normal DOS? There was a special PC3270 workstation program...
  18. That is an interesting point. The baby is IMHO...

    That is an interesting point. The baby is IMHO highly optimised in its use of valves/tubes. It is a single bit serial machine with only a subtract instruction. This means you only need a one-bit...
  19. Well the Manchester Baby uses 3.5Kw and its about...

    Well the Manchester Baby uses 3.5Kw and its about the simplest thing you could build,so thats a real bottom line
  20. Its working fine and was towards the end of the...

    Its working fine and was towards the end of the show.. Found the issue. There was a bent pin on the MMJ<=>DB25 adaptor...

    Dave
  21. Replies
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    I have a service guide for an M250. Any use to...

    I have a service guide for an M250. Any use to anyone?
  22. Replies
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    382

    Whilst there are plenty of chip manuals around...

    Whilst there are plenty of chip manuals around with details of the internals, e.g.

    http://www.bitsavers.org/components/motorola/6801/MC6801RM_AD2_MC6801_Reference_Manual_May84.pdf

    I suspect you...
  23. What a nice weekend nice to meet new folks.. As...

    What a nice weekend nice to meet new folks.. As usual the demo effect hit and the Roland refused to draw the Space Shuttle picture until I worked out there was a bent pin in DEC MMJ to DB25...
  24. Replies
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    And DSSI Disks are getting rare and expensive...

    And DSSI Disks are getting rare and expensive...
  25. Thread: Morse-Baudot

    by g4ugm
    Replies
    24
    Views
    1,237

    There were (and are) programs that decode hand...

    There were (and are) programs that decode hand sent morse. Basically you use heuristics to work out if its a dot, dash and if the space is an inter-element space. This paper (behind a pay wall) dates...
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