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Type: Posts; User: Chuck(G)

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  1. Replies
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    I think I posted something about this awhile...

    I think I posted something about this awhile back--the issue was where to put the BIOS ROM for me. Most 16-bit IDE/floppy controllers don't have BIOS ROMs.
  2. Some ISA 16-bit FD cards also have the DB25F...

    Some ISA 16-bit FD cards also have the DB25F connector (TMC1650/1660) as well as a range of others, such as the CSC FastCache cards. ISTR something about SCSI cards that have a DB25F intended for...
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    I find occasionally that a "new" acronym is the...

    I find occasionally that a "new" acronym is the same as one that I'm familiar with, which makes things very confusing for a time. "IP" doesn't even make me blink any more. It's what I call the...
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    A friend who worked in the "Blue Cube" was...

    A friend who worked in the "Blue Cube" was prevented from taking media out of or bringing media into his project work space. So he just downloaded what he needed into his HP41C calculator. ...
  5. I'll add that Micropolis'...

    I'll add that Micropolis' shipped-from-the-factory drives were horrible as regards azimuth. We began screening drives for head azimuth and started returning about one-third of what we were shipped. ...
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    That's it.

    That's it.
  7. The early Micropolis drives did not turn on the...

    The early Micropolis drives did not turn on the motor when the disk was inserted, leading to a lovely "wrinkled" hub area. Micropolis later added a microswitch to turn on the motor when the drive...
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    I like them on systems and have been using them...

    I like them on systems and have been using them for years. They've all been Seagate ST-1 5GB units--as a matter of fact, the system used as a mailserver, router and firewall here is running on one...
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    Isn't the Model II the one with the strange...

    Isn't the Model II the one with the strange loop-back drive termination? (The Model 16 doesn't use it). Might be your problem there. Seems as if we went through this with Lorne a few moons ago.
  10. The 1006 is close enough to the 1015 and 1016...

    The 1006 is close enough to the 1015 and 1016 drives that the 1016 maintenance manual should be a good guide, at least in matters mechanical:
    ...
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    I believe I made a couple of posts on adding a...

    I believe I made a couple of posts on adding a header to the controller board and using it to run a 3.5" drive and booting from said drive. I have a Model 16, but that's pretty much a Model II with...
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    Another case of your question falling out the...

    Another case of your question falling out the bottom of the "New Posts" tab. :(

    AN is close, but takes DIMMs instead of SIMMs for memory and supports higher-speed Pentiums. USB support is...
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    Now why does your photo make me think of the...

    Now why does your photo make me think of the late, great, Bob Pease? :)
  14. Glad to hear that you found something, Gerry! ...

    Glad to hear that you found something, Gerry! Sorry I couldn't be of more help.

    Your plight does bring up a point using programmable logic (with proprietary programming algorithms). When the...
  15. I think a 720K 3.5" drive will work fine without...

    I think a 720K 3.5" drive will work fine without any other changes. Most software doesn't bother to check the actual drive type.
  16. Worst case, you could send it to one of the...

    Worst case, you could send it to one of the troubleshooters on this forum and save a whole bunch of money and trouble, if you don't consider this electronics stuff fun...
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    I have to admit that I was a bit surprised by the...

    I have to admit that I was a bit surprised by the routing on the PCB. In particular, note that the +5 first point of connection after it leaves the bus is a signal pin. I guess the auto-router...
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    It looked pretty crude to me. A lot of this...

    It looked pretty crude to me.

    A lot of this collector madness to me is like watching "Antiques Road Show"--I just don't get it. If a piece of furniture is worth a quarter of a million dollars,...
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    7407s will work just fine--or you could assert...

    7407s will work just fine--or you could assert /INVERT and use 7406s, but then you'd have to invert the input signals as well (74LS14?).

    The DP8473 is a great controller, but it's very scarce...
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    Okay, for those of you with the prototype board,...

    Okay, for those of you with the prototype board, don't bother to try and cut and jumper traces on U6 pin 16--there are +5 traces both on the top and bottom sides of the PCB that will make life...
  21. I may still have documentation for one--I'll see...

    I may still have documentation for one--I'll see if I can still find it.
  22. It might be suggested that Media Mail might...

    It might be suggested that Media Mail might reduce shipping costs, if the seller is willing...
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    Found it--when I ran through all of the port...

    Found it--when I ran through all of the port addresses 100-7fff, a pulse appeared on /CS. So what address? I just hooked /CS to /IO CH CHECK (A1) and dropped in a handy TSR to dump the registers...
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    I envy you guys with the time. I've had a DVD...

    I envy you guys with the time. I've had a DVD player for years and to date, I've only watched one DVD.
  25. When the Atari 520ST came out, one of the more...

    When the Atari 520ST came out, one of the more common mods was to expand memory by piggybacking. Fairly easy to do on that machine.
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