BeoGram 1000 Pre-Amp PCB: what are the dimensions?

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  • #7399
    KolfMAKER
    BRONZE Member
    • The Netherlands
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    I am trying to recreate the original Pre-Amp PCB for the BeoGram 1000.

    So far, I have the images of the copper traces, including a drawing of the placement of the components and the specs of those. Now I only need to know the exact dimensions of the original Pre-Amp PCB board.

    Question
    Who can help me find the dimensions. In the picture below I have marked the dimensions I am looking for: A – E.

    Schermafbeelding 2022-08-05 om 10.02.50

    #7432
    mexking
    BRONZE Member
    • Mexico city
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    Dimensions all mm.

    BG 1000 prea

    #7433
    matador
    Moderator
    • Paris France
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    THIS IS GOOD BEOWORLD !!!

    #7434
    KolfMAKER
    BRONZE Member
    • The Netherlands
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    @Mexking

    This is perfect information, thanks so much !!!

    I will start to re-produce the original BeoGram RIAA preamp.

    Fantastic!

    #7492
    KolfMAKER
    BRONZE Member
    • The Netherlands
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    At the moment I am in preparation of making the PCB. My first step is to get the copper traces on a board.

    Therefor I have to position and size the image of the copper traces perfectly. I have that picture (see picture below), but it has no outer/PCB border lines, so I have to find out how to size and position this image. (Obviously to get size and proportion equal to the original PCB)

    Questions

    1. Does anyone have such picture of the copper traces pattern, including outside/PCB border lines?
    2. @Mexking: do you have a picture of the bottom side of the pre-amp board?

     

    BeoGram 1000 - Pre Amp PCB Traces

    #7494
    mexking
    BRONZE Member
    • Mexico city
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    Your trace pic is view from component side, here my pic from solder side, black dots are ground (neg.) connections

    20220808_130204

    #7495
    KolfMAKER
    BRONZE Member
    • The Netherlands
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    @Mexking

    Thanks for sending the bottom view picture!
    Yes, I am aware that my trace image has to be mirrored.

    Question
    The board side that sticks into the slot (so where the 8 tracks in a row are), has 8 notches.
    Can you please let me know how deep they are?

    I think they are a little less deep than the 6mm notch on the other side of the board.

    #7497
    mexking
    BRONZE Member
    • Mexico city
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    Notches 2.5 mm

    #7500
    chartz
    GOLD Member
    • Burgundy
    • Topics Started 0
    • Total Posts 61

    In fact the small PCB in the Beogram sans  phono board has the same notches. Just remove it to see!

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