Forum Rules and 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.

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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What kits are currently available?

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    What kits are currently available?

    I just received my XT-IDE board from lynchaj. I also have the XT-FDC board from him and then remembered that mmruzek is selling 5150 clone motherboard kits at

    Is there anything in the works for video, sound, serial/parallel or even LAN cards? Power supplies too. I'm just curious if it's currently possible to build a whole system, aside from the drives, from a kit. Computer kits were long gone by the time I came of age so I never had the chance to build one.
    Last edited by arrow_runner; April 2, 2013, 07:32 AM.
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    I took a look at your want list and thought you (or anyone) might be interested in one of these printers:
    PM me if you're looking for 3" or 5" floppy disks. EMail For everything else, Take Another Step


      Sorry, I think I'm good on those. I need to update that list when I'm done going through everything I picked up.
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        SoundBlaster compatible home-brew would be very cool


          I could use a circuit diagram for a common PC power supply - with all the usual protections - to suit an older AT style machine.

          I have a few machines with proprietary power supplies that have died. Would be nice to be able to route a new board on the computer, get the PCB made up, pop on some brand new quality components, and replace it. For some I can retrofit an ATX supply but others (like my Model 30) it's not square enough.
          Twitter / YouTube


            Originally posted by arrow_runner View Post
            Is there anything in the works for video, sound, serial/parallel or even LAN cards?
            I designed and have PCBs for:
            - ISA OPL2 (an Adlib-like sound card)
            - ISA Floppy and Serial controller card. Similar to XT-FDC, but simpler more straight-forward approach. As the name states, it also has a serial port (UART).
            - Xi 8088. This is an advanced XT processor board. Still based on 8088 (or V20) CPU. But compared to a PC/XT it has PS/2 keyboard/mouse controller, RTC/CMOS, second PIC...

            I am also working on the following:
            - ISA Super VGA card. I actually assembled a prototype yesterday, and so far it works perfectly. I think Michael Mruzek wanted to make kits based on this design.
            - My version of XT-CF-Lite. This is pretty much complete, and I need to order a production batch of PCBs.

            I also used to offer an ISA Backplane, but currently I am out of PCBs.

            Note that I am offering just PCBs for most of the designs above. Builders have to get their own parts. Except of ISA Floppy and Serial controller, for which I also offer PC8477BV-1 FDC ICs.

            Originally posted by arrow_runner View Post
            I'm just curious if it's currently possible to build a whole system, aside from the drives, from a kit. Computer kits were long gone by the time I came of age so I never had the chance to build one.
            I built my own system from PCBs that I have designed and electronic components, excluding the case, disk drives, power supply, and peripherals (display, keyboard, mouse)...

            If you want just to build a computer (not a PC-compatible one), it might be simpler to start with Z80-based designs, such as N8VEM or my Zeta SBC.


              You guys are amazing

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                Better to ask what aren't there kits for. We've got the mainboard, video, audio, and storage accounted for. What else is left? Is there an ISA NIC kit available?


                  A NIC is not available as far as I know... It shouldn't be too difficult to build a NIC using components like Realtek RTL8019AS or Nat Semi DP8390 (for these who don't like SMT components). But it is not something I am planing to do, at least not in the near future.

                  Other than that, the inventory and pricing of my and other N8VEM boards are available on this N8VEM Wiki page.