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Found 27 results

  1. I recently acquired a TRS-80 PC-2 Pocket Computer and cassette interface in good shape and it appears to be functioning correctly. The LCD screen works well and it appears to switch modes from PRO to RUN correctly. The computer also has an 8k expansion card in it and when I type MEM it typically reports that there is 24576 memory free. I am new to this line of pocket computers and have a few questions that I cant seem to resolve. Like I mentioned, the computer was reporting around 24576 memory but now only says 0. I have removed the batteries, push the reset button etc. but it continues to show 0 for memory and I do not know how to correct this or if I am just unaware of what to do? Also, even when it was showing the higher amount of memory available, I would switch to PRO mode to key in BASIC commands but it never seems to retain them. I would key in the line numbers with simple commands such as 10 PRINT "A" and then I would hit enter which should have placed the line in memory but it does not. I switch to RUN mode and type RUN but nothing happens. In PRO mode I try to use LIST or the up and down arrows to see the line numbers but nothing shows. Just curious if anyone can shed some light on these issues or have experienced them. Any comments are greatly appreciated.
  2. I have acquired from eBay an Old OS for the Model 3 from cosmopolitan electronics that brought you Multidos; ZDOS v1.0 MODEL III - downloadable link to DMK/HFE and scanned manual: https://drive.google.com/file/d/1jfyvhW9P9wdPtVnp_adwqUeykLs_aqVf/view?usp=sharing
  3. Poor Man’s TPDD I previously started this as a post on the "TRS-80 Model 100/102/200, NEC 8201A/8300, Kyocera KC-85" Facebook page. I've decided to upload the instructions as single PDF file on this forum as it is a better platform to share this information and files. Note: There is at least one other example of this on the net. However, I found it after I made my prototype. Being retired and on a strict hobby budget, I decided that it would be great to have Portable Disk Drive to go with my TRS-80 Model 100. Unfortunately, most solutions were way over my current budget of zero dollars ($0.00). I rummaged through my inventory of items on hand and created a modern drive using a $10 Raspberry Pi Zero W (a gift) , a very old USB Serial Cable (thrift store), a “lipstick” style phone USB/recharge battery (another gift) , and a few other small items. Since, I already owned everything; I figured that a “headless” Pi should work. I set up the Pi using a fresh Raspberry Pi OS (no desktop). After enabling SSH, I created a share (TPDD) and passed over mComm (python version) from Kurt McCullum’s Club 100 Member Upload Library. I was able to easily get it running on the on the Pi using a TPDD shared folder. I added a switch to shut down the Pi when I didn’t need it. Next, I plugged in the USB Serial Cable and battery. It worked! mComm automatically starts when the Pi is turned on. I pass the M100 files to my Pi through the shared directory on my PC. The Pi’s microSD card will hold almost all the Model 100 files in the known universe. This works better than I could have imagined and meets my current budget of nearly 0(zero) dollars. I am compiling I've compiled the steps needed to set this up and will post them if there is an interest? If you don’t have the materials, this should set you back around $50 or less. (Note: I am not selling this item. I hope others may enjoy it as much as I have! ---------------------------------------------------------------------------------------------------------------------------------------------- Attachments: The build guide: PoorMansTPDD.pdf Also: A ready to use collection of Club100 files (public domain files in the correct format for "mComm") for folks to test. TPDD.zip Poor Mans TPDD.pdf
  4. TRS-80 Pocket Computer 1: Is there an archive out there, or does someone have copies of the old PC-1 software? I'm looking for text files and/or sound files, of the programmes that Radio Shack sold, back in the day. FYI:The PC-1 wasn't compatible with the PC-2. Thanks.
  5. Various software and hardware for the CoCo for sale... Tandy Radio Shack Color Computer Microtech Software Bundle https://www.ebay.com/itm/263514826544 Burke & Burke Tandy Radio Shack TRS-80 Color Computer XT Hard Drive Interface https://www.ebay.com/itm/263513029927 Tandy Radio Shack TRS-80 Color Computer Disk Drive /w Disto Controller (working) https://www.ebay.com/itm/263510855461 Tandy Color Computer CoCo 3 SHANGHAI Activision Cat No 26-3084 https://www.ebay.com/itm/263513099345 Max 10 Color Computer Word Processing Software https://www.ebay.com/itm/263513064574 Radio Shack TRS-80 - CGP-115 - Color Graphic Plotter/Printer https://www.ebay.com/itm/263513044673 Tandy Radio Shack TRS-80 Color Computer Disk Drives (Non-Radio Shack) https://www.ebay.com/itm/263520502611 Tandy Radio Shack TRS-80 Color Computer Disto Controller https://www.ebay.com/itm/263514535397 Thanks all, Carlos
  6. RetroElectroDad

    TRS-80 Model I

    From the album: RetroElectroDad Computer Collection

    Tandy Radio Shack TRS-80 Model I.

    © Trevor Briscoe

  7. I am selling my Atari 400 computer and Atari 410 Cassette Writer. They can be seen here: http://www.ebay.com/itm/Atari-400-Vintage-Computer-and-410-Cassette-Read-Writer-/221955724720?hash=item33ad9795b0:g:ITMAAOSwNphWXLvH -ArdsleyTank
  8. I have several of the CoCo's but I always wanted an original model 1. Now, that dream is finally a reality. I also bought an original monitor that should be here in a couple weeks. Other than a Radio Shack cassette drive, what should I get next? I just want to play some old-school games and do a little BASIC programming. Suggestions appreciated!
  9. I would like to open the discussion on EDTASM+ and your experience with it. I realize this is an Atari forum, but I'll take any input I can get I have a CoCo 2 with 64K and I'm curious how large my applications can get with it. I found this manual online: http://www.colorcomputerarchive.com/coco/Documents/Manuals/Programming/EDTASM+%20With%20ZBUG%20%28Tandy%29.pdf It's been helpful as it references EDTASM+ cartridge version. However, due to the time it was written, it goes into more detail about the 16K and 32K versions. I'm curious if it has support to take advantage of the 64K machine I have. I get that this is more than antiquated, but I have a feeling you understand why I would want to learn this. Thanks in advance to anyone who wants to discuss this.
  10. Wanted to let people know that I have completed typing and debugging a working version of the example program "Mazies & Crazies" from Frank DaCosta's book "Writing Adventure Programs on the TRS-80". Here is a link to my latest post on the project: http://jimgerrie.blogspot.com/2020/04/retrochallenge-april-2020-mazies_19.html It is my impression that this program does not exist in any playable form on any TRS-80 archive sites out there. Anyone know if other working versions exist? I read that a TI99 version of the program also exists. The source is on my github: https://github.com/jggames/trs80mc10/tree/master/quicktype/Dungeon/Mazies The TRS-80 version can be downloaded here: https://drive.google.com/open?id=1_3FddzKahUKnS5P5peXqqXwJTyej2b-g MAZIES can be played in the Javascript MC-10 Emulator here: http://faculty.cbu.ca/jgerrie/MC10/ Just select it from the "-Select Cassette-" menu and then type RUN and hit Enter. Thanks.
  11. I have some retro computers and lots of games for NEC PC Engine, PS, etc. Along with vintage computer gear for sale. RETRO COMPUTING MSX Computer - Sanyo PHC-27 Silver Tandy Radio Shack TRS-80 Color Computer 2 - 64K Ext BASIC w/ Hitachi CPU TRS-80 Color Logo Manual for the Radio Shack Color Computer Tandy Radio Shack TRS-80 Color Computer Direct Connect Modem PAK PC ENGINE GAMES Galaga 88 Space Invaders Lords of the Rising Sun F1 Triple Battle Racing USA Pro Basketball Power League 2 Baseball Power League 3 Baseball Pro Baseball World Stadium '91 Pro Baseball World Stadium Power Golf Winning Shot Golf NAXAT OPEN Golf Ganbare! Golf Boys Formation Soccer JLeague J-League Tremendous Soccer Power Eleven (Soccer) Formation Soccer Cup 90 TV Sports Football BOMBERMAN Bomberman '93 Final Match Tennis World Court Tennis PLAYSTATION PEBBLE BEACH NO HATOU PLUS Minna No Golf 2 BANDAI WONDERSWAN Final Fantasy WonderSwan WS Bandai Wonder Swan Video Game (Box + Manual) Happy to combine shipping though many items are free shipping!
  12. I'm interested in a TRS-80 model I level 2 preferably the one with the numerical keyboard not interested in monitor , only main unit and psu I'm from Greece but I can provide a US adress in Delaware for shipping
  13. Looking for the following cartridges to add to my collection: Androne Demon Attack Don Pan Dragonfire Math Tutor Mindroll (Coco 3 Version) Rampage Shanghai Thanks
  14. I finally got my hands on a nice looking TRS-80 model I computer after years of looking for one today. Have had two monitors for years and an extra power pack, but no computer. This one is very complete with the manuals and looks pristine inside and out except the screws holding the case together have rusted for some odd reason. No signs of moisture on anything but those screws, must have been in a storage unit for a while. Anyways, the monitor is in good shape, but when I boot the computer up I just get garbage, diagonal lines across the screen and what looks like bit's of letters like it is trying to boot up. I pulled the unit apart and it looks fine inside, possibley even upgraded to level II from what I can tell. I found four adjusters on the board and fiddled with them a little, but no improvement. Anyone know what is causing this? If I have to, I'll get a picture tomorrow.
  15. Polybius

    coco2 part 4

    From the album: My Game Collection

    the tandy coco2, with joysticks and games.
  16. Hello! I have a TRS-80 Model III which I have been working on restoring for a while. Sadly, my flaky Model III TRSDOS disk has finally given up the ghost. Any chance someone out there can send me a working copy? PM me if you're interested. Thanks!
  17. I'm looking for someone to do some repair work on a 1977/78 TRS-80 Model 1 (Level 1) and a Coleco Adam. The TRS-80 needs a key replaced (I have a spare keyboard to pull parts from) and has an issue with the video sync (I think). The Coleco Adam is having some power issues, but I think it's coming from the console itself as it won't power on when one or both of the cassette drives are plugged in, but the power light comes on when they're disconnected. It also has no video, as far as I can tell. I'm more flexible with the TRS-80, since I already have the motherboard removed from the cabinet and could easily ship that, but I'm hoping to find someone who already owns an Adam so I can ship just the console with the data drives installed. I do have a spare printer motherboard I could send as well if needed, though, but it would be more expensive. Anyway, if this sounds like something you could do, let me know and we can discuss pricing. Thanks!
  18. I have three very clean CoCo 2s for sale and a painted CoCo 1. I take them apart and clean everything. Next to buying new, this is the next best thing. I have sold countless CoCos and test each one. https://www.ebay.com/itm/263576669245 https://www.ebay.com/itm/263576711109 https://www.ebay.com/itm/263576713816 https://www.ebay.com/itm/263576719045
  19. The Model 4 is great for modern telnet BBSing... Are there any telnet accessible BBSs out there that actually run on Z80-based TRS-80s these days?
  20. Looking for Tandy Color Computer Games and accessories. Buy or trade, I can consider either. PM me if you have any you would like to sell, thanks! (images are not mine, used for reference. )
  21. Hello everyone, I had an interesting trade in today and frankly I have no idea what this stuff is worth or if any of it is truly complete or collectible. Ebay is amazingly scarce on a lot of this stuff and so I turn to the experts here to help me out and tell me what I have. I don't normally take trades like this since I am dumb about classic computing and have no business with these items which I openly admit, but it was just so much stuff and a lot of it was in awesome condition on the inside. The boxes were mostly beat to crap, but a lot of these machines were still in the plastic on the inside. It also came with a bunch of accessories that I had no idea about. The only thing this lot came with that I understood was 4 sealed atari 2600 games and that was the clincher in taking this stuff since I knew those were worth something. I just hope that I have some cool things here that can help flesh out some people's classic computing needs. I have attached pics of everything and i'm hoping you kind people can help me out and tell me what I have and possibly how rare it is if at all and if it's worth anything. I would be more than happy to work out a deal through here with someone if any of you are interested in anything in the pics. I don't post much here, but I am a known retro seller on the internet with a retro store in Portland Oregon and come recommended from rick weis and had a booth at the retro expo in portland. I just know that resellers don't usually have the best reception on these forums for good reason, but I hope you all can give me some help. I truly appreciate any feedback on this stuff. Maybe I can get a few more deals under my belt here as well. If there are any questions or more pics are needed let me know. I tried to take as many informative pics as I could so that there would be little guesswork, but am more than happy to take more if needed. Thanks everyone. Some vic-20 accessories and TRS-80 items Here are the computers themselves in some box shots No Box Now for the open box shots where you can see the amazing quality of the items on the inside. We're talking either never used or very lightly used. The only machine that isn't in the original plastic
  22. Looking working double density board and lowercase character generator chip for TRS-80 model I.
  23. Hi All, Looking for a little help from folks who are really good with circuits... I've had a TRS-80 Model III for a few decades. A bunch of keys on the keyboard stopped working, so I assumed they were dirty and went through the process of desoldering/cleaning/resoldering all of them, only to discover that the same keys still don't work. I then found the Model III service manual online, which has a diagram of the keyboard interface on the CPU board. See the attached PDF for the diagram. From the diagram, I discovered that lines 9, 10, and 15 account for all of the keys which do not work. So the problem is most likely on the CPU board and not the keyboard itself. The problem is, I'm no electrical engineer and I might be a bit out of my depth here. Looking at the diagram, it looks like each of those lines is connected to a resistor (RP5) and maybe a diode (D0A, D1A, etc.) but I don't know if I'm even reading that correctly. I can't really tell if those are all discrete components or if some of them are the same component shared by multiple lines, though. So I'm wondering which parts are likely the culprit here, and how I might locate them if I pull the CPU board from the computer. I tested the 20-pin ribbon cable end-to-end and it seems fine, so the issue isn't in the keyboard or it's connection. It definitely seems to be something on the CPU board based on this diagram. Thank you! trs80-model-3-keyboard-diagram.pdf
  24. I have a bunch of The Rainbow magazines for the Color Computer for sale. See... https://www.ebay.com/sch/colorcomputerstore/m.html?_nkw=&_armrs=1&_ipg=&_from=
  25. I am having a problem with my TRS-80 Color Computer 2, it will not load cassettes. I just bought a new cable for it on Ebay, as i did not have one. The seller said it was made himself, it was hooked correctly into the cassette recorder, but when i try to load a cassette, it just sits there and does nothing, the motors do not run at all on the player with it hooked up, unless i hit play on the recorder, and it still will not load! any ideas?
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