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Type: Posts; User: g4ugm

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  1. 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...
  2. 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
  3. 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
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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?
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    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...
  6. 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...
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    And DSSI Disks are getting rare and expensive...

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

    by g4ugm
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    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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    KA650AA boards appear to be available at a...

    KA650AA boards appear to be available at a reasonable price on E-Bay. Do those fit in the MicroVax II box?
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    According to the CPU manual ...

    According to the CPU manual

    http://bitsavers.org/pdf/dec/vax/630/EK-KA630-UG-001_Feb86.pdf

    the MicroVaxII KA630 CPU can only take 9Mb of memory. It also appears from the KA650 manual
    ...
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    I was going to say GE600/6000 which was bought by...

    I was going to say GE600/6000 which was bought by Honeywell and became the H6000 and then the Level 66 and then the DPS100/200/400/400 and then the DPS8 and is now owned by BULL.
    I think a local...
  12. Thread: Morse-Baudot

    by g4ugm
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    484

    Not sure at this stage in computing any one was...

    Not sure at this stage in computing any one was good at converting received morse to dots and dashes on screen. The trouble is that certaining when this card was built a lot of morse was hand sent so...
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    For me, its got to be the ThinkPad series. Really...

    For me, its got to be the ThinkPad series. Really the first proper laptop that you could just sling in a bag and know it was going to work...
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    You are correct, HEX is human friendly way of...

    You are correct, HEX is human friendly way of representing binary numbers. If you are entering HEX data via a low level monitor then each HEX character gets converted to its 4-bit binary equivalent....
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    I am with Chuck. There were devices to use...

    I am with Chuck. There were devices to use "Normal" printers on C64 but I can't find any drivers to allow C64 printers on DOS. This isn't unexpected. There is no concept of a "Printer Driver" in...
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    Well I asked the auctioneer, it didn't sell.

    Well I asked the auctioneer, it didn't sell.
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    I was wondering if it even sold. The adjacent...

    I was wondering if it even sold. The adjacent lots don't have a price either.
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    https://www.the-saleroom.com/en-gb/auction-catalog...

    https://www.the-saleroom.com/en-gb/auction-catalogues/auctionrevolution/catalogue-id-auctio20-10009/lot-a99369e8-b1bc-4734-a0ed-aab300a30690

    "Auctioneer has chosen not to publish the price of this...
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    I would return it. Also re-seat the RAM but if...

    I would return it. Also re-seat the RAM but if you know its the correct type then you probably did that already.
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    The one thing I have never managed to get working...

    The one thing I have never managed to get working is calling the MIDI sysex routines from VB.NET which is a pain as I need them to tweak the voices in my "Organ" (yamaha HS8 so really a big FM synth)
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    I have some in translucent red cases, so you can...

    I have some in translucent red cases, so you can see the disk...
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    Its quite possible that drives which don't spin...

    Its quite possible that drives which don't spin up can be made to work long enough to get the data off. Sometimes freezing will help, perhaps it changes the tolerances enough to get it spinning. I...
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    I thought as much. Too many other things on my...

    I thought as much. Too many other things on my mind....
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    does it have a battery?

    does it have a battery?
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    These are getting a bit like hens teeth. I put a...

    These are getting a bit like hens teeth. I put a SCSI2SD with an emulated 1GB boot drive in my VLC.
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