Image Map Image Map

Search:

Type: Posts; User: hornbetw

Page 1 of 5 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    5
    Views
    251

    Ira Goldklang (http://www.trs-80.com/wordpress/)...

    Ira Goldklang offers boot disks on his website for a small donation.

    HTH,
    Tom
  2. I have the Service Manual to the RS Voice Synth. ...

    I have the Service Manual to the RS Voice Synth. I thought I got it off archive.org

    Tom
  3. PC-104 has a specific footprint for mounting the...

    PC-104 has a specific footprint for mounting the stacked PCBs. Your board doesn't have the connectors or the 4 mounting holes, so its just a single board computer with I/O connectors. SBCs with...
  4. Replies
    15
    Views
    1,215

    The Model I monitors were built as Model I...

    The Model I monitors were built as Model I monitors. They weren't built as TVs and then converted. The original monitors were based on the KTR121S chassis, later they were changed to the KTR123S...
  5. The EPROM appears to be in Z29's position,...

    The EPROM appears to be in Z29's position, suggesting it is a character generator ROM replacement. It's probably a lower case ROM upgrade. Some of the mods around it may be for additional scan...
  6. Replies
    15
    Views
    1,215

    The optocoupler on the video interface board...

    The optocoupler on the video interface board needs 5V to run.

    Tom
  7. Replies
    11
    Views
    742

    Can't you just make an 8 pin DIN to 5 pin DIN...

    Can't you just make an 8 pin DIN to 5 pin DIN adapter to use a 1000 keyboard on a 2000? The 1000 keyboard has a signal BUSY* (BUSY NOT) that should be able to be left unconnected, the other signals...
  8. Replies
    2
    Views
    306

    Torfinn, I did stumble across both of these in...

    Torfinn,

    I did stumble across both of these in my searching. I've been able to send data from the keyboard, but I can't seem to get the terminal to display what is sent to it. I'll have to take...
  9. Replies
    0
    Views
    169

    Wyse WY-55ES keyboard needed

    Does anyone in the Philly area have a keyboard for the Wyse WY-55ES serial terminal I could borrow? I need to test a terminal I just acquired.

    Thanks,
    Tom
  10. Replies
    2
    Views
    306

    Avaya 715-BCS serial terminal

    I recently acquired an Avaya 715-BCS Serial Terminal that was used as a console on an Avaya (Lucent/AT&T) phone switch. I was wondering if anyone knows where I could download a service manual or...
  11. Replies
    2
    Views
    346

    The Model I had a 12 key numpad (0-9, period &...

    The Model I had a 12 key numpad (0-9, period & Enter keys) that Radio Shack offered. Radio Shack never offered a hexadecimal keypad as an option. Any external keypads would have been home made or...
  12. Replies
    47
    Views
    4,124

    That's just a bypass cap on the +5V line. It...

    That's just a bypass cap on the +5V line. It should be replaced. I doubt that it would cause a non-booting condition, but it might cause read errors on the floppies or reboot problems or "general...
  13. Replies
    30
    Views
    1,435

    Gold - 5%, Silver - 10%, None - 20% HTH, Tom

    Gold - 5%, Silver - 10%, None - 20%

    HTH,
    Tom
  14. Replies
    10
    Views
    931

    That sounds more like the Video cable: Red - +5V,...

    That sounds more like the Video cable: Red - +5V, Black - Ground and Grey - Video. Does the UK monitor have a detachable power cord?

    Tom
  15. The buildings where the mainframes were worked...

    The buildings where the mainframes were worked on, at that site were emptied out a few years ago, so I doubt that any docs are still floating around. :)

    Tom
  16. Strange coincidence, I was just out last night...

    Strange coincidence, I was just out last night with a friend of mine who works in that building for Unisys. Unisys is closing that building next month. :( RIP Burroughs!

    Tom
  17. Replies
    8
    Views
    626

    They are called DIP Shunts. TE Connectivity (Amp)...

    They are called DIP Shunts. TE Connectivity (Amp) is one source. A 16 pin shunt (8 positions) is part # 1825190-7. Sorry, can't figure out how to attach the datasheet for them.

    HTH,
    Tom
  18. Replies
    5
    Views
    572

    Sounds like bit 5 (32) in video memory is stuck...

    Sounds like bit 5 (32) in video memory is stuck High. Instead of displaying 0x41 (A), your displaying 0x61 (a), etc.

    Tom
  19. The DS1225AD is listed as a current production...

    The DS1225AD is listed as a current production replacement for DS1225Y. Digikey has them in stock.

    Tom
  20. Thread: Model 1400 LT

    by hornbetw
    Replies
    2
    Views
    565

    Here's the 1400 LT Service Manual if it helps....

    Here's the 1400 LT Service Manual if it helps. ftp://ftp.oldskool.org/pub/tvdog/tandy1000/documents/14ltserv.zip

    Tom
  21. Replies
    49
    Views
    12,764

    Enable OA was the standard office software for...

    Enable OA was the standard office software for the Marine Corps in the late '80s and early '90s for the "Green" (ground) side of the Corps, the "Blue" (aviation) side used the Navy standard software...
  22. Replies
    19
    Views
    1,687

    Is the small pcb the XRX mod? What makes it...

    Is the small pcb the XRX mod? What makes it different than any other rev?

    Tom
  23. Replies
    19
    Views
    1,687

    What is the 26-1008? Tom

    What is the 26-1008?

    Tom
  24. This monitor is a Sony broadcast video monitor....

    This monitor is a Sony broadcast video monitor. It isn't a television set, it doesn't appear to have a tuner. The connector is to connect a VTR/VCR up to it. Videotek is a company from Pottstown PA...
  25. Replies
    569
    Views
    106,471

    J22 & J23 are probably for 25 pin serial ports. ...

    J22 & J23 are probably for 25 pin serial ports.

    Tom
Results 1 to 25 of 118
Page 1 of 5 1 2 3 4