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KL-503 Rm italy fets

Discussion in 'Amplifiers' started by Robert Foster, Oct 7, 2018.

  1. Robert Foster

    Robert Foster Member

    Jan 10, 2017
    Likes Received:
    Hi need to know what are the rem placement transistor are for this amp. It 1x8 .I accidentally blew them up disconnected antenna due to lightning storm forgot to hook up up and transmitted pop. I seen people stating irf520 520n just need to know what to put back in this amp that i love to get running like it was performed for me as Rm says it will with good match low swr. Thanks for any help you can provide.


  2. Robb

    Robb Yup

    Dec 18, 2008
    Likes Received:
    ERF-2030+ set of ten for $10/free 3 day shipping from Amazon.
    Just bought them last week.
    #2 Robb, Oct 7, 2018
    Last edited: Oct 8, 2018
    Tallman, Shadetree Mechanic and PA770 like this.
  3. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

    May 1, 2013
    Likes Received:
    Be sure to check your bias circuits before hooking up your radio.

    Just a side note here: The FET's listed for the kl-503 are RM4. The change might simply mean that the fets are matched in groups.
    #3 Tallman, Oct 8, 2018
    Last edited: Oct 8, 2018

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