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  1. Replies
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    Hi All; Good going, Congratulations Jack, I am...

    Hi All;

    Good going, Congratulations Jack, I am Glad You had a good visit..

    THANK YOU Marty
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    Hi All; But, the real question is -- Does the...

    Hi All;

    But, the real question is -- Does the Board Work ??

    THANK YOU Marty
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    Hi All; Dave the Sockets are the easy part,...

    Hi All;

    Dave the Sockets are the easy part, it's the wiring that is the Hard part..

    Have a good weekend..

    THANK YOU Marty
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    Hi All; The Only way I have been able to...

    Hi All;

    The Only way I have been able to afford all of the Machine Sockets, is that I have bought them as I needed for a Particular Project..

    And then, later, when I De-wrap what I had Built, I...
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    Hi All; I'm going to use Dave's AC circuitry...

    Hi All;

    I'm going to use Dave's AC circuitry (Schematic) instead of what I have in my Drawings, mine are not in an orderly grouping, where as Dave's is..

    THANK YOU Marty
  6. Replies
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    Hi All; Dave, Thank You for the Update.. I...

    Hi All;

    Dave, Thank You for the Update..

    I have decided to use my Schematics, even though they are Labeled Rows A thru H, I have a Conversion Notebook..

    I will attempt to cross check what I...
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    Hi All; Dave, Thank You for the Reply.. ""...

    Hi All;

    Dave, Thank You for the Reply..

    "" There are copper pads for attaching +5V, 0V/GND, +12V and -5V to the board. ""

    Yes, I saw them, I wasn't sure if I should solder any wire to...
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    Hi All; Dave, I plan on going a slightly...

    Hi All;

    Dave, I plan on going a slightly different route, I first will make it using the 7489's for Ram Memory, and then I will switch to 2102's, since I don't have the Rams that You have or are...
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    Hi All; Dave, I'm putting in 6 Green...

    Hi All;

    Dave, I'm putting in 6 Green Rectangular Led's, as they seem to fit the space better, (and that is what I have in rectangle) and I am using an R-Pack instead of Individual Resistors..
    ...
  10. Replies
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    Hi All; Dave, "" I will then move on to the...

    Hi All;

    Dave, "" I will then move on to the six diagnostic LEDs on the small prototyping area and then the IC sockets. ""

    That Sounds like a good Idea !! Thank You for the suggestion..

    THANK...
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    Hi All; I got all of the Power and Ground...

    Hi All;

    I got all of the Power and Ground wired up..

    I need to next figure out which schematic, that I need to use, and then get started on it..

    THANK YOU Marty
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    Hi All; "" I'm soldering in my sockets, "" ...

    Hi All;

    "" I'm soldering in my sockets, ""

    I cannot afford to do that, that would be too many sockets, that I could not use on anything else..

    A friend of mine soldered in some Connectors,...
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    Hi All; I got most of the Ground Wires wired...

    Hi All;

    I got most of the Ground Wires wired up, I still need to solder some of them to the ground cap connection for a absolute solid ground connection..

    As I am NOT going to solder in my...
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    Hi All; So, Dave Why are You teasing me, with...

    Hi All;

    So, Dave Why are You teasing me, with this statement "" And I have a design for a PDP-8 using 2N7000 transistors and resistors. "" ??

    I will not ask about it any more, and hope when You...
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    Hi All; Thank You, Dave for Your Input.. I...

    Hi All;

    Thank You, Dave for Your Input.. I will have to re-read this a few times for me to make sense of it all..

    "" or use something like a 2N7000 MOSFET ""

    This Explains why my friend is...
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    Hi Tradde; When did You move out of Colorado...

    Hi Tradde;

    When did You move out of Colorado to Texas ??

    And, No that Link doesn't seem to work either..

    THANK YOU Marty
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    Hi All; All I have is Oscar's 2/3 replica...

    Hi All;

    All I have is Oscar's 2/3 replica PDP-8I, and it is not (most likely) the same as a front Panel from a real PDP 8I or PDP 8L.. So the Interface would Not be the same..

    And on the Board...
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    Hi All; On the question of what 'tool' are You...

    Hi All;

    On the question of what 'tool' are You using, I have been using a Radio Shack Hand wrapper for Years, I have a couple of them, and I just don't wrap all of the Board in one day.. And,...
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    Hi All; OK, Jack, Thank You for the link, Yes...

    Hi All;

    OK, Jack, Thank You for the link, Yes I was still able to go there, and I do already have the information..

    Only, I didn't know that it was what I already had..

    How Far are You on...
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    Hi All; jack, You mention, "" be sure to...

    Hi All;

    jack, You mention, "" be sure to read the original "Edition 0" LD12 lab manual as well ""

    But, You don't state where I can find said Edition..

    THANK YOU Marty
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    Hi All; Dave, I Found it, so now I will print...

    Hi All;

    Dave, I Found it, so now I will print it (Hopefully)..

    Yes, it Printed..

    For now, I am going to use H19 for where I am going to mount my temporarily clock (555) timer..

    THANK YOU...
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    Hi All; Dave, I have Printed up the PDP8.PDF...

    Hi All;

    Dave, I have Printed up the PDP8.PDF pages (20)..

    So, now I can correlate the P1 and P2 connectors, which they do.. (Thank You).. But,

    Where is the Construction Manual ?? ( The...
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    Hi All; Dave, it has to do with which...

    Hi All;

    Dave, it has to do with which Schematic is used..

    I have (Hopefully) found the correct one for the Board..

    As a for-instance in one Schematic the 74150 is a C3 and the other J7..
    ...
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    Hi All; I will need to convert from Rows A...

    Hi All;

    I will need to convert from Rows A thru H, to D to M, as my main listing is A thru H..

    But, that will give me something to do on some long winter nights..

    Thank You to Everyone who...
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    Hi All; I Now have the Board, and what a Board...

    Hi All;

    I Now have the Board, and what a Board it is, not anything small..

    Now to try and allocate my time between the 8080 project and this LD12 project..

    THANK YOU Marty
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