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Wanted: Southern Cross 1 Vintage Z80 computer User's Manual

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    Interesting indeed. OK. So that means that the Southern Cross 1 is a copy of the TEC-1. Hmmm. I did not know Peter Crowcroft, but I know Kitsrus is still going here. I was given the bits of the SC 1 by a friend who could not be bothered to build it up when he bought it and then lost half of the components. If it is an illegal copy then there will be no chance. Maybe I need to look at the TEC-1 for what I want to do. Thanks


      Originally posted by Oceanway2009 View Post
      ...... I was given the bits of the SC 1 by a friend who could not be bothered to build it up when he bought it and then lost half of the components. If it is an illegal copy then there will be no chance......

      My friend Oceanway2009,

      You can send me your e-mail address and I will pass that along to
      couple of fellows who have the actual board with all of its components,
      and I will ask them to contact you and help you with the SC-I board that
      you have.



        Hi ziloo,

        Your help is much appreciated.
        Email is

        I was quite excited to get the kit as it was, but as someone who has had a lot of my designs and work copied, I understand the feelings of the original designer. Anyhow, I would like to use what I have for the purpose of demonstration if I can and will mention that it is a copy of the TEC-1.



          Well Oceanway,

          I gave your e-mail address to couple of fellows that are
          working on this board and hopefully they will contact you...

          Hope that helps!



            Hi Oceanway,

            The SC1 is indeed a clone of the TEC-1, but unfortunately this is quite common in the "hobbyist" industry and has been for a very long time.

            Even today I see examples of companies cloning others people's products, sometimes selling them for a lower price and thus competing with the original creators.

            With the SC1, you should not worry about legalities though as the original kit was released in the 1970s, and the SC1 was around for a long time afterwards and is now a long discontinued product. Therefore no one is really interested in it anymore, from that perspective. I do not remember exactly, but I think Peter Crowcroft might have posted to the aus.electronics newsgroup in the past where he clearly stated that the SC1 was a clone of the TEC-1.

            Regarding the monitor program, I think the TEC-1 and SC1 versions may be different. I also think I have a copy of the monitor program if you are interested? Were you able to get a copy of the manual, I can send that to you as well if you haven't already received it from ziloo.



              Hi Ross,
              Thank you for your reply.
              I am interested in building this thing up if at all possible, so would appreciate a copy of the manual and the monitor program. I understand the disappointment and annoyance associated with rip off and design copy and this has happened to me several times. ziloo has been helpful explaining the issue and I appreciate his help, but I don’t yet have a manual copy. Finding this out has really flattened my enthusiasm for this whole project. Maybe a double lesson for the kids I want to show this thing to. Anyhow, my email is shown above, I will understand if no one is prepared to help with this.



                I guess what we don't yet understand is what are you trying to do! If you are an
                engineer by trade, you know that you should ask your questions directly without mixing
                things up. You talk about legality of what you want to do, and then you talk about
                another board which could have a modified design and then it goes back and forth.....
                If you need a copy of the manual, having read the previous posts on this thread,
                you should/could have asked for one directly!

                I received a copy of an e-mail that was sent to you from a fellow who received
                a copy of the manual and put together a complete SC-I board, telling you that
                he is ready to help you! If you haven't checked your e-mail or you haven't
                received his memo, I will forward his memo to you and then you can directly
                communicate with him. You can't get an offer better than that! I will also
                send a copy of the manual your way....

                Let me know if you have received my e-mail!



                  Hi ziloo,

                  Thanks for the manual. I did email you back as soon as I get it. I have also been contacted by the fellow you mentioned above.

                  I am sorry if I have not made my intentions clear. I simply want to build up a micro system that is similar to the ones I worked with during my uni time in the late 1970’s. I do a lot of work with final year engineering students at a university here and run a defacto PIC course for students wanting to add microcontrollers to projects. There has been a lot of discussion about what it was like when I was at uni and what we had to work on, especially without all of the development tools available today. I asked around and got hold of a SC 1 kit with a lot missing. It was exactly what I wanted. My idea was to put it together to show the students and have some fun with it.

                  My issue with rip off copies is that I run a marine consulting firm in Hong Kong and have developed a lot of underwater sensing equipment, most of which has been completely ripped off by others at a loss to me. Unfortunately my company is not big enough to do much about it. I have now turned to PIC’s to be able to (at least) protect further development firmware. So to find out I am actually working with a copy, after actually getting exactly what I wanted, is a bit of a disappointment.

                  I hope my intentions are clear now. I will post some photos after I get it going. If you would like to know more about what I do then please feel free to ask or to email me.

                  Again, thanks for your help with the manual. It has made the assembly a hell of a lot easier.



                    Hi ziloo;

                    I'm in the same predicament with regard to SC1. Could you be so gracious as to send me a pdf of the "Southern Cross 1" user manual. Thanks in advance.




                      Originally posted by wbjorken View Post
                      Hi ziloo;

                      Could you send me a pdf of the "Southern Cross 1" user manual
                      Hello Wayne,

                      I just sent a copy of the manual to your email address!

                      May the force be with you....




                        I have just found a Southern Cross 1 Vintage Z80 computer but without user guide. Does someone have one and send me?
                        Thanks a lot.


                          Hi! Nice SBC, I am also interested in a manual !
                          Someone here actually built one? Seems like a refined copy of TEC-1B!