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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Removing Yellowing from Plastics - Part 4

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    The edit button seems to be missing, so I can't add this to the previous message. But here's the completed Apple IIe Platinum. You can see I avoided treating the logo for fear it would fade, so there a little yellowing still visible there. The photo doesn't do it justice. It really looks new.

    Latest Acquisitions: ADDS Envoy, Sun 3/50, Teletype BLIT, DECMate II
    Still Wanted: Ithaca Intersystems DPS-1, SSB Chieftain, Altos 2086, TRS-80 Model 16, Victory FACTOR
    Always looking for: AT&T 3B2's and UnixPC/3B1's.


      Looks good!

      My vintage collection:
      My vintage activities blog:
      Twitter: @classiccomputNZ ; YouTube Videos: (click here)


        can you use guar gum in place of xanthum gum?


          Hi, I'm new here, I just have a question, is anyone aware of someone that offers restoration services, such as removing the yellowing for older computers, I would rather send mine off to someone and have them do it then mess with it myself?



            Originally posted by Macclassic74 View Post
            Hi, I'm new here, I just have a question, is anyone aware of someone that offers restoration services, such as removing the yellowing for older computers, I would rather send mine off to someone and have them do it then mess with it myself?

            Depends where you are located. I'm sure that those people that have even RetroBrite'd their patio furniture would be more than happy to dazzle you with their ability to make case parts look brand new again.
            Legacy Computers and Parts

            Sales of, parts for, and repairs to, Vintage and Legacy computers.


              Yes, I'm responding to a post from 2012, but for a reason...

              Originally posted by Lorne View Post
              Trust me: it isn't doing any de-yellowing at night (without UV lights).
              It may be bubbling (which is probably caused by the Vanish itself), but there will be no de-yellowing - UV is needed to make the process work.
              All it's doing at night is getting wet - it might make it look cleaner in the morning, but that's probably just old nicotine/tar being washed off by the bubbling.
              This video disputes that, and shows a Mac 128k being whitened by submerging the plastic into an opague container filled with diluted hydrogen peroxide (not a gel solution) and left overnight, without exposure to UV light. The amount of de-yellowing is not that great, but it looks like it's doing more than just cleaning the plastic:


                I did a SNES last year in just plain h2o2 in a mostly transparent tub outside over an entire overcast weekend

                The console was washed in hot water soap degreaser and ISO alcohol so nothing was left on it, and it went from fairly tan to just about perfect no problems

                In fact I never use the high octane gel formulas just dollar tree stuff with some dollar tree oxy clean dissolved in some hot water and it works fine, takes longer and takes even longer without strong sunlight, but I'm starting to wonder if that's more heat than uv