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  1. I

    Can you identify this CoCo FDC?

    I’ve never seen this one before i.e. a FDC with a hole for dip switch settings.
  2. I

    ‘OS-9 Level Two and the Tandy Color Computer-3’ accompanying disk

    I am trying to locate the accompanying disk for OS-9 Level 2 and the Tandy Color Computer-3 by Rodger Alexander and Scott Honaker: https://colorcomputerarchive.com/repo/Documents/Books/OS-9%20Level%20Two%20and%20the%20Tandy%20Color%20Computer%203%20(Rodger%20Alexander%20&%20Scott%20Homaker).pdf...
  3. I

    Gotek vs Lotharek

    Several months ago I emailed Lotharek in order to clarify the difference between the HxC and their Gotek firmware. The answer suggested that they were basically the same.
  4. I

    Atari Joystick to CoCo Adaptors?

    I was looking at one of these on ebay, given that Atari sticks simply have 4 switches and CoCos have potentiometers (like the Apple II), are many games actually playable with Atari, or compatible, joysticks?
  5. I

    Black Box manual and driver archive mirrors?

    I located this Internet Archive of the OEM page i.e. Protec Microsystems, however no floppy image was available. https://web.archive.org/web/20030405013949/http://www.protec.ca/set.asp?top=top.html&left=products/pr_left.html&main=products/psharing/index.html From this page I can see that the...
  6. I

    Black Box manual and driver archive mirrors?

    I tried to download a copy of pi10xhsb.zip from here: https://web.archive.org/web/20130718140610/http://ftp.blackbox.com/connectivity, however the zip archive was not archived by the Internet Archive. The device is a High Speed Serial Buffer PI101A. Datasheet...
  7. I

    Archive of coco3.com file uploads?

    Is there an archive of files from coco3.com? Specifically I am after the 8 slot multi-pak files from this archived page...
  8. I

    CoCo HJL-57 Keyboard Repairs?

    Has anyone had any experience with repairing the venerable HJL-57? I have recently purchased one with a 1 key not working…
  9. I

    MCL6809 - Drop-in 6809 emulator running in a Tandy Color Computer 2

    I’m thinking that extra memory with the GIME MMU emulation will offer better performance than a GIME and external memory. I don’t want to get carried away here, however, the Teensy usb port, which wont be used most if the time, could be connected to a USB to RS232 adaptor, or two. This assumes...
  10. I

    MCM66700 Series Character Generator Dumps?

    Does anyone have any thoughts on what the most suitable and readily available EPROM / EEPROMs may be? I know lower capacity ROMs are becoming increasingly rare - and expensive in some cases.
  11. I

    MCL6809 - Drop-in 6809 emulator running in a Tandy Color Computer 2

    Even if a CoCo 1 or 2 owner is able to have 'only' 1MB for nitrOS-9, I believe they will be more than happy. Now, I have to throw this in, people have emulated the SPO-256 speech chip and the AY3-8913 sound chip contained within the Tandy Speech and Sound Pak, these could also be added in. In...
  12. I

    MCM66700 Series Character Generator Dumps?

    I think the bin might be good to go? I’m onto selecting a ROM size now, simply in terms of whats the most readily available.
  13. I

    MCL6809 - Drop-in 6809 emulator running in a Tandy Color Computer 2

    Is there a way that this could be made to emulate the CoCo 3's MMU and 2MB RAM or more, in a CoCo 1 or 2? For NitrOS9, etc
  14. I

    MCM66700 Series Character Generator Dumps?

    Okay, well it turns out the bin was not dumped, it was created from the datasheet. So, in this case and given that “(RS0..RS3) are really the low address lines (A0..A3)”, it should just be a case of burning the EPROM? I don’t need to worry about an adaptor for the computer as the MCM66740...
  15. I

    MCM66700 Series Character Generator Dumps?

    Many thanks. However, I just realised that I would need to know the pin mapping used by the person who created an adaptor and inserted the character generator into a programmer for dumping? I don't know this! I guess I can try trial an error, although perhaps there is another way… This video...
  16. I

    MCM66700 Series Character Generator Dumps?

    Thank, Dave. I was looking to save time and found the MCM66740 dump I was looking for. Have you encountered any issues when using an EPROM or EEPROM to replace an original chargen chip?
  17. I

    MCM66700 Series Character Generator Dumps?

    Does anyone know of a site contain dumps of Motorola's character gens from the the late seventies through early eighties? The MCM66700 series can be found in this databook: 1982 Motorola Memory Databook Of particular interest is a dump of the MCM66740.
  18. I

    Ray Holmes of Holmes Engineering (Model 100) peripheral co

    Okay, I have puchased an IC tester which can identify most glue logic chips. When time permits, I look forward to desoldering a couple of chips and iding them… Then I’m onto reproducing the PCB, or at least finding someone, who is less time poor than I am, to do so. The Chipmunk, aka the Munk...
  19. I

    External CoCo keyboard housing suggestions?

    Given the current PC custom keyboard craze, has anyone looked for a case which will nicely house a CoCo keyboard?
  20. I

    Off the Shelf CoCo 2/3 Keyboard to CoCo 1 Adaptor

    I’m yet to try one of these, however, they look to be ideal for installing a CoCo 2/3 keyboard in a CoCo 1? https://www.amphenol-cs.com/product/65801016lf.html
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