[Amps] Plate choke resonance and safe operation

[W7RY]

We are limited to 150 watts on 30 meters here in the US. So a plate choke resonance at 10 MHz is good for us. 

73
Jim W7RY

  ----- Original Message ----- 
  From: Carl 
  To: alexeban ; 'Vic K2VCO' ; 'OZ1AXG Flam' 
  Cc: 'Amps reflector' 
  Sent: Sunday, December 07, 2008 8:46 AM
  Subject: Re: [Amps] Plate choke resonance and safe operation


  Unfortunately 10% doesnt fly if you want 10 and 12M

  Carl
  KM1H


  ----- Original Message ----- 
  From: "alexeban" <alexeban at gmail.com>
  To: "'Vic K2VCO'" <vic at rakefet.com>; "'OZ1AXG Flam'" 
  <oz1axg.nospam at dxmail.dk>
  Cc: "'Amps reflector'" <amps at contesting.com>
  Sent: Sunday, December 07, 2008 11:42 AM
  Subject: Re: [Amps] Plate choke resonance and safe operation


  >A reasonable estimate would be about +- 10%away from the bands' edges: 
  >if
  > you get a reasonable impedance that far off, you can assume to be 
  > safe.
  > Alex 4Z5KS
  >
  > SunWolf
  > "Jesus, come get your kids, they're tearing up my Mother's backyard!"
  > -----Original Message-----
  > From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] 
  > On
  > Behalf Of Vic K2VCO
  > Sent: Sunday, December 07, 2008 6:21 PM
  > To: OZ1AXG Flam
  > Cc: Amps reflector
  > Subject: Re: [Amps] Plate choke resonanse and safe operation
  >
  > OZ1AXG Flam wrote:
  >> the RFC is Installed
  >>
  >> I will try to measure the resonans again. For 27 MHZ i did the 
  >> measurement
  > 3
  >> times. A grid dip meter is not the most accurate instrument, so i 
  >> will try
  >
  >> it again. but how close is "safe" ? what would the symptoms be at 
  >> tuneup
  > if
  >> resonans is close by ?
  >
  > You didn't mention it, but I assume that you know that the choke must 
  > be
  > *shorted* when
  > you dip it.
  >
  > I am afraid that the symptoms are mostly that the choke burns out!
  > -- 
  > 73,
  > Vic, K2VCO
  > Fresno CA
  > http://www.qsl.net/k2vco
  > _______________________________________________
  > Amps mailing list
  > Amps at contesting.com
  > http://lists.contesting.com/mailman/listinfo/amps
  >
  > _______________________________________________
  > Amps mailing list
  > Amps at contesting.com
  > http://lists.contesting.com/mailman/listinfo/amps
  > 

  _______________________________________________
  Amps mailing list
  Amps at contesting.com
  http://lists.contesting.com/mailman/listinfo/amps