Announcement

Collapse

Forum etiquette

Our mission ...

This forum is part of our mission to promote the preservation of vintage computers through education and outreach. (In real life we also run events and have a museum.) We encourage you to join us, participate, share your knowledge, and enjoy.

This forum has been around in this format for over 15 years. These rules and guidelines help us maintain a healthy and active community, and we moderate the forum to keep things on track. Please familiarize yourself with these rules and guidelines.


Remain civil and respectful

There are several hundred people who actively participate here. People come from all different backgrounds and will have different ways of seeing things. You will not agree with everything you read here. Back-and-forth discussions are fine but do not cross the line into rude or disrespectful behavior.

Conduct yourself as you would at any other place where people come together in person to discuss their hobby. If you wouldn't say something to somebody in person, then you probably should not be writing it here.

This should be obvious but, just in case: profanity, threats, slurs against any group (sexual, racial, gender, etc.) will not be tolerated.


Stay close to the original topic being discussed
  • If you are starting a new thread choose a reasonable sub-forum to start your thread. (If you choose incorrectly don't worry, we can fix that.)
  • If you are responding to a thread, stay on topic - the original poster was trying to achieve something. You can always start a new thread instead of potentially "hijacking" an existing thread.



Contribute something meaningful

To put things in engineering terms, we value a high signal to noise ratio. Coming here should not be a waste of time.
  • This is not a chat room. If you are taking less than 30 seconds to make a post then you are probably doing something wrong. A post should be on topic, clear, and contribute something meaningful to the discussion. If people read your posts and feel that their time as been wasted, they will stop reading your posts. Worse yet, they will stop visiting and we'll lose their experience and contributions.
  • Do not bump threads.
  • Do not "necro-post" unless you are following up to a specific person on a specific thread. And even then, that person may have moved on. Just start a new thread for your related topic.
  • Use the Private Message system for posts that are targeted at a specific person.


"PM Sent!" messages (or, how to use the Private Message system)

This forum has a private message feature that we want people to use for messages that are not of general interest to other members.

In short, if you are going to reply to a thread and that reply is targeted to a specific individual and not of interest to anybody else (either now or in the future) then send a private message instead.

Here are some obvious examples of when you should not reply to a thread and use the PM system instead:
  • "PM Sent!": Do not tell the rest of us that you sent a PM ... the forum software will tell the other person that they have a PM waiting.
  • "How much is shipping to ....": This is a very specific and directed question that is not of interest to anybody else.


Why do we have this policy? Sending a "PM Sent!" type message basically wastes everybody else's time by making them having to scroll past a post in a thread that looks to be updated, when the update is not meaningful. And the person you are sending the PM to will be notified by the forum software that they have a message waiting for them. Look up at the top near the right edge where it says 'Notifications' ... if you have a PM waiting, it will tell you there.

Copyright and other legal issues

We are here to discuss vintage computing, so discussing software, books, and other intellectual property that is on-topic is fine. We don't want people using these forums to discuss or enable copyright violations or other things that are against the law; whether you agree with the law or not is irrelevant. Do not use our resources for something that is legally or morally questionable.

Our discussions here generally fall under "fair use." Telling people how to pirate a software title is an example of something that is not allowable here.


Reporting problematic posts

If you see spam, a wildly off-topic post, or something abusive or illegal please report the thread by clicking on the "Report Post" icon. (It looks like an exclamation point in a triangle and it is available under every post.) This send a notification to all of the moderators, so somebody will see it and deal with it.

If you are unsure you may consider sending a private message to a moderator instead.


New user moderation

New users are directly moderated so that we can weed spammers out early. This means that for your first 10 posts you will have some delay before they are seen. We understand this can be disruptive to the flow of conversation and we try to keep up with our new user moderation duties to avoid undue inconvenience. Please do not make duplicate posts, extra posts to bump your post count, or ask the moderators to expedite this process; 10 moderated posts will go by quickly.

New users also have a smaller personal message inbox limit and are rate limited when sending PMs to other users.


Other suggestions
  • Use Google, books, or other definitive sources. There is a lot of information out there.
  • Don't make people guess at what you are trying to say; we are not mind readers. Be clear and concise.
  • Spelling and grammar are not rated, but they do make a post easier to read.
See more
See less

Tandy 1000 Upgrades.

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    #46
    Originally posted by Tupin View Post
    Still need help. Either both the floppy drives go on at the same time, only the 3.5 inch drive goes on, or neither go on. There's a cable with a black connector and a gray connector, the 5.25 inch drive has one edge connector, while the 3.5 inch has 2. Which ones go to where?
    Sounds like an addressing problem to me. You might have to move the drive select jumper on the disk if there's no twist in the ribbon cable. If the replacement floppy drive is sufficiently old enough it should have one. New ones have all but eliminated the DS jumper.

    Comment


      #47
      I never actually replaced the drive. I just put it back in the machine, and now neither drive works. Here's the cable I'm using to connect the drives:
      Attached Files

      Comment


        #48
        Okay, I see no twist there, so check the jumpers if they are what they ought to be.

        What are the models of both floppy drives? I might be able to look them up (or you can also) and see what jumpers go where.

        Also, just ran across an adapter to let you use a pinned type drive where a board edge connector ought to be used if it's needed.
        The ancients knew *more* than us...
        http://www.legendarytimes.com/forum/index.php They're baaaack!

        Come and see http://www.gamegavel.com for all your gaming needs! We have Zero-ohm resistors!

        Comment


          #49
          Got sidetracked and tried it again today. Well, I'm back where I started. 5.25 drive works, not the 3.5 drive. Guess I'll just keep looking for a 1.44 MB drive.

          I think I also need an NEC V20, my fully expanded Tandy 1000 booted up Alien Syndrome but was so slow it was unplayable.

          Comment


            #50
            Okay, so now it sometimes says the drive is not ready. I opened it up to see how it starts up, and noticed it doesn't move much. It uses a 34 pin connector, of which I only have one other model. The other one came from a similar machine that also had a similar adapter on it, but rather than having just one connector, it had another one that adapted the power supply pins. I plugged it in like the original drive and it didn't work.

            I'm not sure where to go from here, I don't know if a floppy drive will work so I don't want to buy one until I do, and I also need a faceplate for 3.5 drive in a 5.25 enclosure.

            Comment


              #51
              Tupin:
              What model Tandy 1000 do you have? Is it a 1000, 1000A, 1000SX, or what?
              Surely not everyone was Kung-Fu fighting

              Comment


                #52
                It's an original 1000.

                Comment


                  #53
                  Need a little time to to go through my Tandy manuals and try to figure this out. If you had a 1000SX you wouldn't have a problem at all.
                  Hang in there!
                  Surely not everyone was Kung-Fu fighting

                  Comment


                    #54
                    Sounds good...

                    Comment


                      #55
                      In the mean time, I'll get a floppy cable for a modern computer so I can put a 5.25 in it to transfer files.

                      I don't see why any old 34 pin drive wouldn't work...

                      Comment


                        #56
                        A word of caution about that. The way the 1000SX works is that a particular floppy drive's position, that is either "A" or "B", is dependent on the jumper settings within that particular drive. The 1000SX uses a floppy cable without the familiar twist. If you use a modern 3 1/2" floppy on the 1000SX as your "B" drive, in the absence of movable jumpers, you must resolder the hard-wired jumpers on the floppy's pcb. The easiest way is to leave the 3 1/2" as the "A" drive and easily change the jumpers on the 5 1/4" drive to "B". I think the 1000 gets it's power through the drive cable, therefore most of the above may not apply. Unless you can come up with a super 8-bit floppy controller that likes the 1000, the most you will be able to realize is a 3 1/2" 720KB/1.44MB floppy operating at 720KB only, and a 5 1/4" DS-DD 360KB floppy. As far as I know, none of the 1000 series BIOS will natively support high density drives. I'll keep checking . . .
                        Surely not everyone was Kung-Fu fighting

                        Comment


                          #57
                          I just want a 720K drive, so that's fine.

                          I guess I'll just bite the bullet and buy a 1.44MB drive and hope it works, at least they are cheap.

                          Comment


                            #58
                            I have a 1.44MB drive in my original 1000 and it works perfectly as a 720K drive. The original Tandy floppy cable is very short and does not use a twist, but if you retrofit a standard floppy cable with the twist, then you won't have to worry about messing around with the drive select jumpers on the floppy drive(s).

                            Also, the older 1000s use standard Molex power connectors. I believe it was only the 3.5" floppy drives in the 1000HX and newer models that combined the power with the data cable.

                            Finally, don't believe Radio Shack when they said you need to upgrade the ROM in the original 1000 in order to support a hard drive. My 1000 has the original, never upgraded 01.00.00 ROM and I am able to just pop in a Seagate ST11 controller and hard drive and it works perfectly.

                            Comment


                              #59
                              I don't have a cable with a twist AND edge connectors, will any standard universal cable work? Also, if I use the universal cable, can I just use the 3.5 connector rather than the adapter and a card edge?

                              Comment


                                #60
                                Originally posted by Tupin View Post
                                I don't have a cable with a twist AND edge connectors, will any standard universal cable work? Also, if I use the universal cable, can I just use the 3.5 connector rather than the adapter and a card edge?
                                Feel free to experiment for yourself. It only takes a few minutes to swap out the cables and see what works and what doesn't.

                                Comment

                                Working...
                                X