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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.


Rule 1: 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.


Rule 2: 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.



Rule 3: 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.


Rule 4: "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.

Rule 5: 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.
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Unique S-100 computer (Z-80/Vector Graphic/Micropolis)

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    Originally posted by deramp5113 View Post
    It looks like the motor on/off mod and the ready mod are both implemented, so that's not the problem. Let me know what happens when you try the other disk images.

    Mike
    I know I tried the other images before with the same results. But now I'm not making any progress writing disks again. It starts accepting data over XMODEM, hits the first write block, the drive spins and clicks a few times (never did this before) and then write fails. Will keep playing with it.

    Comment


      So something happened the other day I was hoping was unrelated but maybe it was.. I had a probe hooked to the drive board, went to roll my chair and poof something sparked, blew a fuse on the drive's power supply. Ugh.. replaced the fuse, everything seemed to be working fine. I swear I even had it "attempting" to write again after that, but I can't remember now. What should I be looking for? again.. Before it would go to write, the head would advance and it would at least think it was writing data. Now its like I'm back to square one where it goes to write data, but then fails..What got that to work before was swapping the head connectors on the board.. double checked that.. tried both drives, tried swapping the drives physically, too. The head snaps down now, it clicks a few times - then fails to write.
      Last edited by nullvalue; June 3, 2020, 06:02 PM.

      Comment


        You mention, "went to roll my chair..." Did you end up pulling off a probe that shorted against something and "poof something sparked," or without being disturbed, did something go poof? If the latter, it's probably just a tantalum capacitor that died initially in a shorted condition that blew the fuse, but then finished open after it burned. If a probe or something caused a short bad enough to cause a poof and a spark, then that will be much harder to find as an IC or component or two is probably damaged.

        Mike

        Comment


          Yeah meant to say, when I rolled the chair, the probe was tangled around the arm and yanked the probe. I didn't exactly see if there was a spark as I had looked away. When I say poof I was referring to the fuse. I know, I'm not giving you much to go on.

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