Forum Rules and Etiquette

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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.
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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:
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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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FS in US: DEC PDP-11/73 and VT420

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    FS in US: DEC PDP-11/73 and VT420

    I picked this all up and saved it from the scrapper... but my health, time, and space in the house doesn't allow another project to keep going. So sadly, it has to go.

    The system is a Micro PDP-11/73 with the following cards/drives:
    Slot 1: M8190 KDJ11-B CPU
    Slot 2: M8067 512K RAM
    Slot 3: M8067 512K RAM
    Slot 4: M3104 DHV11 8-port Serial
    Slot 5: M8639 RDRX Interface
    Also has a working RD52A hard disk and the RX50 floppy.

    The VT420 is still in excellent shape and has a matching keyboard to go with it. I also have 82 RX formatted floppies to go with the unit (apparently difficult to find already formatted and takes another DOS computer to format otherwise), and even a DECserver 200/DL with the H3104 "harmonica".

    This is all located in Columbia, SC and is a HEAVY beast - so either shipping considerations would have to be taken or local pickup. I can drive it mostly anywhere in the state of SC, or up to the Charlotte, NC or Augusta, GA areas.

    I am not sure as to the price since these seem to be sold so infrequently, but I am going to ask $2000 OBO plus shipping if applicable. I hate to let this go but it would be much better served in someone else's home than mine at this point.

    Bump to the top...

    Anyone make an offer! I am pretty flexible!


      Post-holidays bump. Still have this sitting around. I would like to find it a new home!


        Bump... still available and receptive to all reasonable offers.



          The PDP was moved from one home to another across town since the last bump... but now I am moving to NC and this thing will either end up living in a garage or hopefully in a new home! I don't mind selling it to someone in the SC or NC area - or shipping if someone wants to take that risk, but I would rather not have it sitting in an uncontrolled garage when I move. Please make an offer and get it off my hands!

          Still have everything except the DECserver... it went to e-waste 2 years ago.


            Is the 11/73 in a BA23 chassis? Rackmount or pedestal? Does it have the front bezel?


              Originally posted by stephenbuck View Post
              Is the 11/73 in a BA23 chassis? Rackmount or pedestal? Does it have the front bezel?
              Its in the BA23 chassis with pedestal mount and bezel is still there! I can upload more pictures since it has been a while.


                I'm in VA and would be happy to pick up in NC if it is still available.


                  Originally posted by vcm View Post
                  I'm in VA and would be happy to pick up in NC if it is still available.
                  Give me a PM! I am traveling here and there but will be available the next couple of weeks depending on your schedule!


                    Bump once more! Probably the last bump before I strip it for parts and send the chassis and terminal to the scrap pile. It has to leave my garage before summer!


                      It would be a shame to strip it. But if it comes to that, I'd buy the chassis/backplane and the VT420. But probably not for as much as you want to get for them, considering the $2000 pricing of the complete machine.
                      -- Lee

                      If you get super-bored, try muh crappy Odysee channel: Old Computer Fun!

                      Looking For: Type 4 HDC for Tandy II/12/16/6000, Mac IIci hard drive sled, PC-era Tandy stuff, Weird Old Unix Stuff, Aesthetic Old Serial Terminals (HP and DG in particular)


                        I'm in the same boat. I'm close (about an hour from Charlotte), would love to have this for my someday museum and give it a home next to my 11/34, but I have nowhere near the budget.
                        Save the Machine Computer Preservation Group |


                          The pricing is definitely flexible - very flexible. Give me an offer!


                            Hey NavyBOFH, I sent a couple of messages but haven't heard back. Just thought I'd try my luck on this thread.

                            Edit: I see you may be travelling! Apologies if this is the case =)
                            Save the Machine Computer Preservation Group |