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  • Apple //c power brick schematics

    From Brad Wolfgang@brad_wolfgang.doesnotlikespam@meatbyproduct.yahoo.com to comp.sys.apple2 on Saturday, July 26, 2003 17:24:57
    From Newsgroup: comp.sys.apple2

    I have a //c and no power supply brick to go with it. So I decided to try
    to build one. (What Would Woz Do? :)
    If anyone has/knows where to find schematics, Let me know. I'd sure
    appreciate it.
    Although I admit, at first, I was a little discouraged by the DIN 7. ("Good grief, no wonder the it's the size of a cinderblock, all those different signals and voltages"). Then I pulled up the specs and found out it only
    uses three pins. (Although, I'm still not sure what the difference between
    the electrical ground and chassis ground is, insofar as tying them together
    to the same output on the brick.)
    Like I said, any help is most welcome.
    -Brad
    (offlist replies to address shown, minus the obvious additives.)
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  • From Bill Garber@willy46pa@comcast.net to comp.sys.apple2 on Saturday, July 26, 2003 13:51:30
    From Newsgroup: comp.sys.apple2


    "Brad Wolfgang" <brad_wolfgang.doesnotlikespam@meatbyproduct.yahoo.com>
    wrote in message news:Xns93C47DF57523B752476978@216.168.3.44...
    I have a //c and no power supply brick to go with it. So I decided to try
    to build one. (What Would Woz Do? :)
    If anyone has/knows where to find schematics, Let me know. I'd sure appreciate it.
    Although I admit, at first, I was a little discouraged by the DIN 7.
    ("Good
    grief, no wonder the it's the size of a cinderblock, all those different signals and voltages"). Then I pulled up the specs and found out it only
    uses three pins. (Although, I'm still not sure what the difference between the electrical ground and chassis ground is, insofar as tying them
    together
    to the same output on the brick.)
    Like I said, any help is most welcome.
    -Brad
    (offlist replies to address shown, minus the obvious additives.)

    Here is sone interesting info on "The Brick"

    http://www.archaic-apples.com/files/apple2c/misc/iic.power

    Bill @ GarberStreet Enterprises };-)
    Web Site - http://garberstreet.netfirms.com
    Email - willy46pa@comcast.net



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  • From Brad Wolfgang@brad_wolfgang.doesnotlikespam@meatbyproduct.yahoo.com to comp.sys.apple2 on Saturday, July 26, 2003 18:16:36
    From Newsgroup: comp.sys.apple2

    "Bill Garber" <willy46pa@comcast.net> wrote in news:0S2dnWwMX4uWIr-iU-KYvA@comcast.com:

    Here is sone interesting info on "The Brick"

    http://www.archaic-apples.com/files/apple2c/misc/iic.power


    Much help. Although I'm still not sire what the difference is between
    signal ground and shield ground, so far as whether they can be tied to the same output from the brick.
    -Brad
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  • From mjmahon@mjmahon@aol.com (Michael J. Mahon) to comp.sys.apple2 on Sunday, July 27, 2003 08:30:14
    From Newsgroup: comp.sys.apple2

    Brad Wolfgang wrote:

    "Bill Garber" <willy46pa@comcast.net> wrote in >news:0S2dnWwMX4uWIr-iU-KYvA@comcast.com:

    Here is sone interesting info on "The Brick"

    http://www.archaic-apples.com/files/apple2c/misc/iic.power


    Much help. Although I'm still not sire what the difference is between
    signal ground and shield ground, so far as whether they can be tied to the >same output from the brick.

    The "signal ground" should be called "power ground".

    The "shield ground" is the third wire in the US power receptacle.
    It is connected to an earth ground in a properly wired building.

    If you don't have an earth ground, then leave that unconnected.
    The connection between earth ground and power ground is
    made with a network inside the //c.

    -michael

    Check out amazing quality 8-bit Apple sound on my
    Home page: http://members.aol.com/MJMahon/
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