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Pills or mosfets

Discussion in 'CB and Export Equipment and Accessories' started by Oldtimer, Feb 1, 2011.

  1. Oldtimer

    Oldtimer Active Member

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    I was doing some research on the 440HP
    I saw a video and it showed two mosfets.
    Another picture I saw a pill.
    Do the newer 440HP's have pills and the older have mosfets.
    Thanks
    God Bless


     

  2. 9C1Driver

    9C1Driver Well-Known Member

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  3. jazzsinger

    jazzsinger Bullshit Buster

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    most likely the other way around,
     
  4. Shockwave

    Shockwave Sr. Member

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    As Jazz says, older ones have Bipolar (pills) as you call them and newer ones have Mosfets. Generally speaking Mosfets often produce less IMD (cleaner signal) and work better in broad band amplifier stages. The problem is the Mosfets used in CB applications were designed for switch mode use and never intended for the linear mode service they have been pressed into. Real RF Mosfets designed for linear use are much more expensive and almost never used on this band.
     

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