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Type: Posts; User: mrthreeplates

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  1. Sticky: I will be there and attending for the first time....

    I will be there and attending for the first time. Looking forward to it!
  2. I am not sure there are any advantages as they...

    I am not sure there are any advantages as they are functionally the same (maybe less noise?). I just thought it a bit more elegant to use a simple logic switch vs. extending the drive select lines...
  3. Success! I used a small prototype board from...

    Success!

    I used a small prototype board from chipquick as space was super tight. As I was worried about adding additional power to the system, I used low power cmos ttl compatible chips (HCT). ...
  4. Hi Gonk23, Trash-Eighty, Thanks! I've ordered...

    Hi Gonk23, Trash-Eighty,

    Thanks! I've ordered parts from digikey to prototype a breadboard so I don't have to do any rework on the floppy controller itself. I'll just have to socket u6 (at...
  5. Thanks for the link to that document! That is an...

    Thanks for the link to that document! That is an interesting approach that I hadn't thought of, much appreciated.
  6. Thanks, yes that is what I was thinking as well....

    Thanks, yes that is what I was thinking as well.

    My current thought is that I'll pull u6 from the floppy controller and replace it with a custom board. I'll have a switch that will flip the drive...
  7. Booting from an external floppy on a model III

    Hi

    Is there a way to boot from the external floppy interface on a model iii?

    I have a hxc floppy emulator and would like to boot from it without having to swap cables. Preferably, I'd like to...
  8. Replies
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    218

    Coco 3 feet?

    Hi,

    I have an ebay rescue coco3 which I've gotten working again, recapped, 6309 and 2mb... but is somehow missing the feet!

    This will not do! Anyone know where I can get replacement feet, or...
  9. As to why I did this, both pots were gummed up. ...

    As to why I did this, both pots were gummed up. However, one was stuck so bad I had to use a wrench to turn it.

    Without really getting the dried up lube out, I figured the stickiness would return...
  10. Stuck contrast / brightness knobs on my model 3

    I know there are lots of threads on this common issue, but I've only read one where it was mentioned that you can take the pots apart.

    While it looks like I can find these pots new, I wanted to...
  11. Success! Well, maybe still some things to chase...

    Success! Well, maybe still some things to chase down...

    I got hrgtest to run... Gload, gron, gcls, all seem to work. I'm running ldos from my M3SE.

    Could not get surface plot to run, or...
  12. Thanks for the replies and help. Attached are...

    Thanks for the replies and help.

    Attached are the photos of my model 3. From what I can tell, I have the Tandy version of the hi res graphics board. Not sure if I'm lucky or unlucky. All of...
  13. Hah! Sorry I wasn't clear, I have the original hi...

    Hah! Sorry I wasn't clear, I have the original hi res graphics option with my model 3. This is the board behind the motherboard.

    I have a M3SE as well, but this isn't relevant except that it...
  14. Simple way to test my model 3 hi res graphics capability?

    Hi,

    I have just got my model 3 working with a M3SE and would like to see if my graphics is working.

    Is there a simple cmd that I can run under ldos that will exercise the card? Hopefully a...
  15. Jay: Thanks for the offer for the replacement...

    Jay: Thanks for the offer for the replacement drive, I may have other parts I would like so will pm you.

    Update, I was able to recover my broken drive. I discovered one of the head rails had...
  16. Thanks, that is reassuring that it is a standard...

    Thanks, that is reassuring that it is a standard fix of some sort. The drive works as far as I can tell.

    My other drive gives errors, so I'm going to try and clean it up and see if I can restore...
  17. Strange hack on floppy drive for model iii

    Anyone know what the strange hack on my floppy drive is about? It appears to be a 7406 piggy backed on some other chip

    Oddly, my model III seems to have two very different drives as my second...
  18. Thank you, very helpful and informative!

    Thank you, very helpful and informative!
  19. Is there a list of model 3 ROM versions?

    Hi all,

    I just aquired a model 100, model 3 and Coco 3. So far I got the M3 working, and it shows a copyright date of 1980 for the basic.

    Is there a list of rom versions that have been made? ...
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