All 4-1000 gurus step inside

Discussion in 'Amateur Radio Amplifiers' started by W4EKY, Jan 16, 2017.

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  1. KM1H

    KM1H Ham Member QRZ Page

    Those are the common 4-125A to 4-400 plus 3-400Z and 500Z sockets by Johnson. Same as in my LK-500ZC
     
  2. N2EY

    N2EY Premium Subscriber QRZ Page

    If it works, no problem.

    But, consider: to get more than 1 kW output on 6 the plate is probably dissipating in excess of 500 watts. While it may not show color, it's getting warm at that level.....

    Yes they're really well made. And they've lived their lives in dry conditions....

    73 de Jim, N2EY
     
  3. W4EKY

    W4EKY Ham Member QRZ Page

  4. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    I'd say the Murata is "out." No RF current ratings of any kind, RF amps are not listed in potential applications, and I see they only plot D.F. up to 1.0 MHz, where it starts rising quickly. As a result, I'd say those are not "RF" capacitors at all.

    No idea on the Sprague without actual part numbers and spec sheets.
     

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