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Randall RG-75D

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  • #16
    Originally posted by g-one View Post
    Your picture does not show the board number. Maybe it is something other than RG75B as it has 17 transistors and the filter caps are 3300uf. Is there a part number on the board somewhere?
    Here is the board number

    Click image for larger version

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    Last edited by dmcastillor; 01-22-2012, 05:15 PM.

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    • #17
      Dear dmcastillo.
      Please do your homework.
      For starters, in your picture I see R29 and R30 , which are *not* in the official schematic, *with that label* , but are definitely there *doing something* .
      So check what are they connected to and based on that, find them in the schematic.
      And relabel them accordingly.
      For example , they are close to a transistor called Q15 (on the board, might *not* be Q15 on the schematic, so check that too).
      Find what are they connected to and check those on the schematic which are connected the same way.
      There´s no other practical way.
      Juan Manuel Fahey

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