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    Hopped Up TRS-80 Model III

    My latest TRS-80 project Model III
    -Electronics upgrade to Model 4
    -Faux prototype keyboard
    -High Res Graphics Board
    -NOS IBM Tandon floppy drives
    -FreHD hard drive painted silver
    -NOS Radio...
  2. Hey thanks for the kind words everybody!...

    Hey thanks for the kind words everybody! Absolutely my favorite "vintage device" at the moment. There's a lot you can do with PI/debian and scripts, even at 9600 baud. I ended up buying two of them,...
  3. What's done to it: -Disassembled, thoroughly...

    What's done to it:
    -Disassembled, thoroughly cleaned
    -Painted top bright white (bottom remains dark brown)
    -Removed all keys and retro whited them to get brighter letters
    -Covered dip switch...
  4. Lear Siegler ADM 3A Terminal - Raspberry PI

    Lear Siegler ADM 3A modernized and connected to Raspberry PI via RS-232

    http://citylife48.com/static/photos/DSC02052_800.jpg

    http://citylife48.com/static/photos/DSC02048_800.jpg
    ...
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    I've now successfully connected PI to an ADM-3A...

    I've now successfully connected PI to an ADM-3A so I'm thinking 1) both of my model 4's have serial problems 2) the model 4 serial hardware is sensitive/peculiar or 3) it's a software...
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    I found the bug you mentioned and was able make...

    I found the bug you mentioned and was able make it work anyway because the programs only needed a few bleeps and bloops. I'll definitely try more complex sounds now. Thanks 1 million for the help.
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    Ahhh ok, I'm not sure if the one above is MAX3232...

    Ahhh ok, I'm not sure if the one above is MAX3232 so I ordered a genuine MAX3232 serial board to try!
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    I've been using "Ableconn PI232DB9M Compact GPIO...

    I've been using "Ableconn PI232DB9M Compact GPIO TX/RX to DB9M RS232 Serial Expansion Board for Raspberry Pi." Last night I tried connecting it to 5V instead of 3V still no luck.
    ...
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    Hey thanks for the info. Suspected it's something...

    Hey thanks for the info. Suspected it's something with the model 4 serial port and confirmation is mostly what I wanted. I'll look into handshaking on the PI side. It'd be nice to have terminal...
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    Model 4 RS232 Terminal Emulation

    Trying to connect a Model 4 to a Raspberry Pi RS232 serial port for linux login. On the PI side "agetty" is attached to the serial port. On the TRS80 side I get a login prompt as expected however...
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    Mine does similar. Recent order. For about 1 week...

    Mine does similar. Recent order. For about 1 week it worked great and then it started showing PROGRAM NOT FOUND and random freezes on boot. I tried the same as you, SD cards, re-copying files to the...
  12. They both have lower case ROM installed as well

    They both have lower case ROM installed as well
  13. Wanted Lear Siegler LSI Terminal eg. 3A, 31, or 5

    Must be working with green screen. Exec condition. Must have upper/lower case. Willing to pay good price for nice one. Thank you. 3A, 31, or 5
  14. Nice! Thanks for posting

    Nice!

    Thanks for posting
  15. Thread: Finally started

    by taos23
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    Make sure your drives are grounded. Similar has...

    Make sure your drives are grounded. Similar has happened to me before. If you haven't done it, just put a screw or two in the sides (rails) like when you put it all back together, and make sure those...
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    Auto-booting interface that allows you to select...

    Auto-booting interface that allows you to select games. Simulates CompuServe with dialing sound, connect, 300 baud, etc. After a timeout, it runs a random game to avoid screen burn, thus I'm looking...
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    @Caluser000 Thanks Forgot to mention I’m...

    @Caluser000 Thanks

    Forgot to mention I’m looking for Trs-80 Z80 games with demo intros
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    Games with Demo Mode and Sound

    I'm working a Compuserve interface that simulates dialing, connecting 300 Baud, etc. I'm a big Compuserve fan. Anyway It lets you nav to the game menu and pick a game or it will eventually pick a...
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    It's version 4.9C. I've tried keystretch. ...

    It's version 4.9C. I've tried keystretch.

    Good news is that I found IMPORT2 on the NEWDOS SD card (hard4-0), so I'm able to copy programs from the internet to the TRS-80, at last!
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    Autodelay doesn't help unfortunately, and I tried...

    Autodelay doesn't help unfortunately, and I tried adding the period above. I discovered that LSDOS disk images work fine, so maybe it's a problem with the NEWDOS disk image from the FreHD Cd.

    How...
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    XTRS and repeating characters

    I've got everything working with xtrs and Ubuntu (latest) however almost all DMK and rom images repeat typed characters double or up to eight times. In the screen shot below I type "1" once. Tried...
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    Here's the hopped-up Model III NGA. After...

    Here's the hopped-up Model III NGA. After watching Ian's video about a Tandy 3 I wanted the prototype keyboard look :)

    http://citylife48.com/static/photos/IMG_7553_800.jpg
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    Exactly what I needed. Thanks. Got it working and...

    Exactly what I needed. Thanks. Got it working and I can build from it.
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    Level 2 Machine Language Sounds

    Anybody know of sample code, formulas, or documents describing the machine language DATA for generating simple sounds through the cassette port? For example using POKE from Level 2 DOS. I found the...
  25. Thread: Finally started

    by taos23
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    I have LOTS of experience with "Cass?" recently....

    I have LOTS of experience with "Cass?" recently. Like ngtwolf said it's usually a bad drive, you can try each drive alone and see if it works. When it's working you should see "Diskette?" when you...
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