2 Meter Homebrew Amp. Thinking of Tube Substitute

Discussion in 'Amateur Radio Amplifiers' started by K2WH, Oct 18, 2011.

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  1. K0BG

    K0BG Ham Member QRZ Page

    I guess I should ask, why are you planning to use a tetrode, rather than a triode??? Tetrodes have much worse IMD ratings, than triodes, everything else being equal. Yes, you can use 4CX250, or better yet, 4CX350s, and do quite well. But... If you really want to be friendly with your neighbors (close by, and amateur related ones as well), chose a triode!
  2. W1VT

    W1VT Ham Member QRZ Page

    Triodes that work on 2M are much more expensive than tetrodes.
  3. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    That sure is true.

    Although I have a lot of 2C39s (which are triodes) that will work on any frequency up to a couple of GHz, 100W output per tube. Six in parallel could run 600W out on two meters.;) Never actually tried that, but I don't see why it wouldn't work.
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