How do I ground the grids on the SB-220

Discussion in 'General Technical Questions and Answers' started by VE3PCD, May 5, 2012.

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  1. VE3PCD

    VE3PCD Ham Member QRZ Page

    Hello,
    I am working on a SB-220 amp that I just bought and have read where it make sense to ground the grids of the 3-500Z directly, I think that I understand how to do this but would like to know if anyone has done this and what is the correct method, some PICs would also be helpful.

    73
    Peter
    ve3pcd
     
  2. N4CR

    N4CR XML Subscriber QRZ Page

    Without commenting on whether it's the right thing to do, to ground the grids you connect them to ground. Yes, it's really that simple.
     
  3. K7MH

    K7MH Ham Member QRZ Page

    Towards the bottom of this page;
    http://www.bcdxc.org/heathkit_sb220_mods.htm

    If you Google something like "grounding grids of SB-220" there will be some stuff to read about it.

    And BE CAREFUL poking around in that thing!
     
  4. VE3PCD

    VE3PCD Ham Member QRZ Page

    Thanks to all, after posting this question I figured it out which was rather very simple.
     
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