Image Map Image Map

Search:

Type: Posts; User: Chuck(G)

Page 1 of 20 1 2 3 4

Search: Search took 0.92 seconds.

  1. Are you using the CC I drivers? If not, have...

    Are you using the CC I drivers?

    If not, have you tried reading/writing disks of both densities?

    I've owned both CCI and CC II boards, but never used them as primaries.
  2. Replies
    2
    Views
    3

    Motherboard fan ratings?

    I've got a case that can accept a 120mm fan. I also have a 12V 120mm fan that is spec-ed at 2.5A. Is it safe for me to plug this into my motherboard's case fan connector, or should I use an...
  3. Thread: Cholesterol

    by Chuck(G)
    Replies
    22
    Views
    208

    "μηδὲν ἄγαν' seems to be the way to go. So I...

    "μηδὲν ἄγαν' seems to be the way to go. So I eat poultry sparingly, but steer clear of red meat. So not strict vegetarian, but not a meat-and-potatoes person. You couldn't classify me as much...
  4. Replies
    5
    Views
    53

    Can't help you there; obviously, the tag RAM...

    Can't help you there; obviously, the tag RAM needs to be as fast as the cache chips. Faster? Well, it couldn't hurt... :)
  5. Thread: Cholesterol

    by Chuck(G)
    Replies
    22
    Views
    208

    Well, maybe for some folks, but my LDLs remain...

    Well, maybe for some folks, but my LDLs remain high, regardless of diet--and I suppose that holds true for many folks (I'm not overweight either and my diet is largely vegetarian--I do treat myself...
  6. Replies
    12
    Views
    154

    Without popping the top, my recollection is 12SK7...

    Without popping the top, my recollection is 12SK7 for the IF stages, If you'd like, I can give you a rundown on the lineup.
  7. The CC I and CC II (same animal, just difference...

    The CC I and CC II (same animal, just difference between 2 and 4 drive capability) require their own drivers, as they're not strictly compatible with legacy PC FDC conventions. The Sydex utilities...
  8. Replies
    12
    Views
    154

    Nice job! I've got an old WWII shipboard...

    Nice job!

    I've got an old WWII shipboard receiver sitting on my shelf. I rewired the heaters so it can be powered from 12VAC+HV supply. It's actually a unit that saw action--the maintenance log...
  9. Poll: Sounds right to me.

    Sounds right to me.
  10. Replies
    5
    Views
    53

    There are other substitutes--I didn't bother to...

    There are other substitutes--I didn't bother to run them all down, but a list is in the front of the Moto Databook (PDF page 31).
  11. Poll: I'm old-school conservative--I run my pullups...

    I'm old-school conservative--I run my pullups through resistors. But that's just me.

    As far as J1 and J2, it all depends on your using PS/2 floppy drives +5 on pin 3 and +12 on pin 6 for the...
  12. Replies
    7
    Views
    88

    That's a nice board! Checks a lot of boxes.

    That's a nice board! Checks a lot of boxes.
  13. Replies
    12
    Views
    154

    Some antique radio restorers have taken the...

    Some antique radio restorers have taken the "guts" out of electrolytic "can" capacitors and replaced them with modern electrolytics and replaced the "can".

    I've got an old Western Electric...
  14. Poll: Note that from the datasheet, the PC8477 has a...

    Note that from the datasheet, the PC8477 has a few operating modes. You want to stay in the PC AT mode rather than either of the PS/2 modes, as that's what most software expects. That means that...
  15. Too much documentation or not well organized.

    I'm moving some of my work from the ARM Cortex 3(4) to the ARM Cortex M7 MCUs. I've got an evaluation board with a STM32F767 that looks identical (right down to component placement and values) with...
  16. If it's not a PC on the other end, things get...

    If it's not a PC on the other end, things get more interesting. Your AVR can certainly use the PC for host->MCU 8 bit transfers (just use D0-D7). In the reverse direction, I'd rather spend my time...
  17. Replies
    5
    Views
    53

    Does it have to be Moto? There are plenty of...

    Does it have to be Moto? There are plenty of equivalent 16Kx4 SRAM chips.

    CY7C164
    MB81C74

    ...etc, etc, etc...
  18. Again, that was my point 'way back. You can't...

    Again, that was my point 'way back. You can't depend on these lines being OC. I've also seen bi-directional protocols that attempt to "jam" 8 bits onto the data outputs. Yes, it will work in many...
  19. Poll: Looks much better! The problem with currently...

    Looks much better! The problem with currently available DC37 brackets is that there are no "tabs" to anchor them to the board (used to be), so the connector has to assume the stress.

    As to the 3...
  20. Replies
    16
    Views
    181

    Shame about the 280 picture. I never used them,...

    Shame about the 280 picture. I never used them, but serviced a couple. They seemed to be well-contstructed mechanically, but the electronics were sort of meh.
  21. You're correct--you're limited to send a nibble...

    You're correct--you're limited to send a nibble in each direction. Some of this may be documented in the IEEE 1284 standard. To do more, you need bi-directional 8-bit lines. Old HP Laserjet...
  22. Poll: I'll have a look later.

    I'll have a look later.
  23. Yes, look at my code. The rule of thumb is...

    Yes, look at my code.

    The rule of thumb is that "if you think that you have an original idea on a 40-year old platform, it's probably been done".
  24. Replies
    562
    Views
    171,704

    Or you can just build one yourself on a hunk of...

    Or you can just build one yourself on a hunk of perfboard, like I did with the original.

    I'm surprised that no one has used the SMT version of the MCU and stuck the whole thing inside of a DIN...
  25. Thread: Imsai 8080

    by Chuck(G)
    Replies
    9
    Views
    248

    Sure, pack the thing well and take it to Windsor...

    Sure, pack the thing well and take it to Windsor and catapult it over the Detroit river ! :)
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4