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Type: Posts; User: Chuck(G)

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  1. Replies
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    Such stuff tends to be commodity stock. What's...

    Such stuff tends to be commodity stock. What's the thing look like?
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    Okay, I'll extend the registration period for a...

    Okay, I'll extend the registration period for a month. Drop me a PM and we can take it from there.
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    Drop them an email--I've found that their...

    Drop them an email--I've found that their response was pretty quick. There's stuff on the nameplate that I can't make out, but they'd probably be happy to read it off for you.
  4. Oh, it was just the quality of the response that...

    Oh, it was just the quality of the response that engendered the concern. It wasn't typical of your style.
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    Dunno--a small DC motor with electronic control...

    Dunno--a small DC motor with electronic control may be the better solution.

    I've got a capacitor-start motor that's about the size of a jar of mayonnaise, but it's got a gearhead attached to get...
  6. Thread: AliExpress

    by Chuck(G)
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    I've used AliExpress several times and haven't...

    I've used AliExpress several times and haven't noticed any problems. You can also try banggood for pretty much the same stuff.
  7. Um, are you okay, Dwight?

    Um, are you okay, Dwight?
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    IIRC, if you were a customer of Phoenix, the...

    IIRC, if you were a customer of Phoenix, the signon message text is up to you, as long as it includes the Phoenix copyright.
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    For what it's worth, here's my schematic in PDF...

    For what it's worth, here's my schematic in PDF form (done on Eagle). I accessed it last in 2014, so there's been some water under the bridge:
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    Is the BIOS in that system known to be from IBM?

    Is the BIOS in that system known to be from IBM?
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    I believe that ImageDisk contains a TD0-to-IMD...

    I believe that ImageDisk contains a TD0-to-IMD converter.
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    Wow, I'd have to find an 11-year old schematic...

    Wow, I'd have to find an 11-year old schematic file? I'll have a look, but no promises.

    Most PROM programmers can handle the small PIC chips and there is also the JDM programmer if you've got a...
  13. One strike against CP/M was the file system. ...

    One strike against CP/M was the file system. While okay for floppies--and probably designed for them--it was a disaster when inexpensive hard disks came on the scene. Flat directory structure,...
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    I stash my DSO in an aluminum Halliburton case...

    I stash my DSO in an aluminum Halliburton case that I bought in the 1960s.

    Now, if I could only figure out a use for my 6-tape Samsonite case from the same period.
  15. I think it's more complicated than that. In...

    I think it's more complicated than that. In 1980, IBM was a very big name in the business and a lot of vendors were expecting something exceptional in the way of the then-rumored Personal Computer....
  16. You could obtain an inexpensive PWM fan...

    You could obtain an inexpensive PWM fan controller that varies the fan speed based on temperature. That should quiet things down a bit.
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    Klean-Strip Green Denatured Alcohol...

    Klean-Strip Green Denatured Alcohol.

    SDS

    Between 80-100% ethanol. Availability can be spotty--most outfits carry the 50-50 ethyl-methy mixture instead.

    My own supply is a gallon can of the...
  18. On the other hand, Lotus 1-2-3 was the reason...

    On the other hand, Lotus 1-2-3 was the reason that a lot of 5160's were sold--as well as "turbo" and LIM add-ons. Before that, it was VisiCalc and Apple IIs.
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    That, I think would be worse.

    That, I think would be worse.
  20. Well, I just received an AMD Athlon 64 X2 5200+...

    Well, I just received an AMD Athlon 64 X2 5200+ CPU (socket AM2) from HK. Order was placed on 7/30; arrived 8/11; cost was USD$5.78 and even came with a packet of HS compound. Works fine.

    I...
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    Is this close enough?...

    Is this close enough?
  22. You can write 160/180/320/360 floppies on a 1.2M...

    You can write 160/180/320/360 floppies on a 1.2M drive that will usually work. but you'll have to use DSDD/2D media rather than the HD stuff.
    What happens is that the 1.2M drive is 96 tracks/inch,...
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    Exactly what do you intend to do with the...

    Exactly what do you intend to do with the methanol-denatured ethanol? Drink it--bathe in it? Dosage is everything. Looking up toxicology on pure methanol shows that inhaling vapor at 300 ppm...
  24. Ground loops are a nuisance, particularly in US...

    Ground loops are a nuisance, particularly in US gear. While your 'scope shield (shell of the BNC probe connector) is line-neutral/ground (same in the US; connected at the distribution box). ...
  25. It's for signal ground--and yes, it matters,...

    It's for signal ground--and yes, it matters, particularly where signal ground isn't the same as earth/case ground.

    Where you have a "hot" chassis/ground, you use both probes in differential mode...
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