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Re: Thoughts on the Miniboots amp with Softrock?

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  • dick_faust
    Might try Kits and Parts he has nice filters. Could always add a cap to notch out the 3rd harmonic of 10M on the 20M low pass.
    Message 1 of 2 , Sep 2, 2007
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      Might try Kits and Parts he has nice filters. Could always add a
      cap to notch out the 3rd harmonic of 10M on the 20M low pass.

      http://www.kitsandparts.com/univlpfilter.asp

      Dick
      K9IVB

      --- In softrock40@yahoogroups.com, "Bruce Conner" <bruce.conner@...>
      wrote:
      >
      > I'm planning to add a miniboots type amp to my softrocks, but I'm
      in a
      > bit of a puzzle with the 30/40 rig. I could make pluggable filters
      > for the amp for each band, or rig up some diode switching to make
      > locating the switch less critical, but then I began to wonder if it
      > would work OK if I just used the output filter for 30 meters for
      both
      > bands since they aren't multiples. It would save making and
      switching
      > the multiple coils. Would this work, or would I end up sending out
      > spurious stuff when I was transmitting on 40?
      >
      > I'd just build it and test it, but I don't access to a good spectrum
      > analyzer.
      >
      > Any thoughts would be appreciated,
      >
      > Bruce
      > WB8OGK
      >
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