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Search results

  1. J

    Help with sb220, zero output power

    Hello all, I have been playing around trying to get my old sb220 working. Just a run down of what’s done inside the box. First off I have 2 mismatched tubes one old eimac and one newer graphite style. Could this be my issue right off the bat? I put in the nomadradio bias board. And it appears...
  2. J

    low output from this 4 pill

    I picked up this 4 pill a few weeks ago, 8 gauge wired straight to the battery, I can't get this thing to swing more than 100w. I'm driving it with a 980ssb but I have even tried driving it with a 2 pill and still won't swing more than 100w. I'm no amp builder and don't have the tools to test...