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Type: Posts; User: Chuck(G)

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  1. Replies
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    Sure, no problem. When it fails...

    Sure, no problem. When it fails...
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    Instead of complaining about the poor quality of...

    Instead of complaining about the poor quality of a consumer item, why not just spring for a commercial solar light with a LiPo battery and high-efficiency solar panel? They're making headway in...
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    There are a few Teac FD-55Bxxx drives on eBay. ...

    There are a few Teac FD-55Bxxx drives on eBay. It depends on how much you'd like to pay.

    The really insane $$$ prices for the FD-505 combo drives has my head spinning. I still have most of a...
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    Read the line below the "WD1772PH". If it reads...

    Read the line below the "WD1772PH". If it reads "02 02", you stand a good chance of getting the chip to work at 16MHz, though it will probably run hot. (early 80s CMOS wasn't that fast). Not all...
  5. When handling large data structures, I find that...

    When handling large data structures, I find that it's convenient to reduce offsets to <32K; you avoid boundary issues with little additional overhead.

    OP: If you want to fill memory fast,...
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    Even if you install U6 to provide a...

    Even if you install U6 to provide a doubled-clock, your problem is the WD1770, which isn't rated for the doubled data rate of 8" drives. Your best bet is the WD1770PH02 02; otherwise it's...
  7. Please add "Confirm if you want to leave this page" to PMs

    I just got through writing a long and detailed response to a requestor via the PM facility. I wanted to add a bit of data, so I clicked on the web search box on my browser. To my horror, I...
  8. Component markings are typically solvent-based,...

    Component markings are typically solvent-based, so not subject to water. This looks more like it was hit by oil or alcohol.

    I suspect that there's a lot you don't know about this PSU's history. ...
  9. If nobody steps up, I'll have a look in my...

    If nobody steps up, I'll have a look in my archives.
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    I've got one with the LiFePO₄ battery. Claims to...

    I've got one with the LiFePO₄ battery. Claims to be aluminum-cased. Regular steel pipe clamp-on fitting. Intended for commercial use, but oddly, was only about sixty US clams. Could have been a...
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    It depends on what you need to do. Many EDA (if...

    It depends on what you need to do. Many EDA (if not most) tools require a 64 bit platform. No way you're going to get that running on an 8088 or 80486 or even a P4.
  12. No, you have to modify the segment register. In...

    No, you have to modify the segment register. In you case, set ES to 0400h and BX to 0.

    It gets a little more involved when you want to store 65,535 bytes on a boundary that doesn't start on a...
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    Astute observation, but hardware is the thing. ...

    Astute observation, but hardware is the thing. Software can be hosted on anything that meets the requirements. There was a Japanese fellow years ago who demonstrated PC98-based games on his...
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    How does one hook an RPi up to ISA-card based...

    How does one hook an RPi up to ISA-card based peripherals?
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    If the housing of the lamp is cast ('pot metal"),...

    If the housing of the lamp is cast ('pot metal"), the white powder is likely zinc oxide, leached from the zinc in the metal. Non-toxic--people put the stuff on the face as a UV protectant.
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    Globar in a can of mineral oil.

    Globar in a can of mineral oil.
  17. Or Videotex...

    Or Videotex.

    As some of the third-party ANSI implementations demonstrate, there is a certain advantage to abstracting the display interface. Scrolling of a text display using normal Int 10h...
  18. Do you know where this PC was used? In a...

    Do you know where this PC was used? In a kitchen area, perhaps? What you're describing sounds more like gunk in the air settling on the boards, than something from a component failure. I'm...
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    Could be that the IR LED puts out a tight beam...

    Could be that the IR LED puts out a tight beam that isn't visible from the side, or the LED frequency doesn't register on your digicam.

    OT: I've seen folks who disassemble the lens assembly of...
  20. About the only issue with 800K DD disks I've...

    About the only issue with 800K DD disks I've found have been in reading--disks written on systems using WD 17xx/27xx, sometimes are formatted leaving the IAM out, which means that the first IDAM...
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    As a check, you might consider booting an older...

    As a check, you might consider booting an older version of Linux to see what it finds.
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    Barely gets to freezing here--and given the...

    Barely gets to freezing here--and given the general trend, that may not even occur much more.

    But LiFePO₄ batteries apparently do better than SLA in low temp conditions. Several manufacturers...
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    As I mentioned, the batteries that I've been...

    As I mentioned, the batteries that I've been using have been SLA AGM ones and I get a couple of years out of them. Seeing as that's roughly the time between power failures here, that's not a going...
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    Goes back to what I said when retr0brite was...

    Goes back to what I said when retr0brite was first debuting. The museum conservators use a water-based paint when appearance is important. Doesn't affect the plastic.
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    My suspicion is that my UPS is over-charging the...

    My suspicion is that my UPS is over-charging the 3x6v AGMs, leading to their shortened lifetime. That's what's odd--it takes an 18V battery configuration. My 1.5KW Elgar uses a 48V battery setup...
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