[Amps] Have an AL-811 tune question???

[W7RY]

>From the KK5DR Site...

"ALC!"

"Any ham operator that does not use an ALC feedback circuit to control the exciter RF output to the amp, is an idiot."

I don't use ALC. I guess I'm an "idiot".  Pretty harsh words for someone who doesn't know me.

I don't use information from someone who insults me.  Take a look at W8JI's site. Better information.



73

Jim W7RY









  ----- Original Message ----- 
  From: Dave Weiss 
  To: OTAKEBI at aol.com 
  Cc: amps at contesting.com 
  Sent: Tuesday, September 09, 2008 5:47 AM
  Subject: Re: [Amps] Have an AL-811 tune question???


  Dan:

  Please take a look at the web site attached.  You will get the straight
  information there.

  Attempting to seriously under load an amplifier has serious consequences,
  don't do it.

  <goog_1220963974199>www.kk5dr.com/*Tune*up.htm<http://www.kk5dr.com/Tuneup.htm>

  You will learn all you need to do on the web site.  I have 2 Ameritron amps
  AL 80 and AL1200; I use the methods on the web site.

  Good tuning...
  Dave K3FT


  www.kk5dr.com/*Tune*up.htm

  On Mon, Sep 8, 2008 at 10:38 PM, <OTAKEBI at aol.com> wrote:

  > I have an Ameritron AL-811 Amplifier and before I blow it up I have a
  > question.
  > The instruction manual is not very clear on this issue.
  > As to the load control, the book says to set it at 4 1/2 at 4.0 MHz.
  > I find that at 3.983, after I adjust the plate for maximum output I end up
  > with the plate control at 5 which is very close to the recommended starting
  > point of 5 1/2.
  > However, I get more output if I turn the Load control down to about 1 with
  > the same input power from the exciter.
  > The question is should I leave the load control at 4 and 1/2 or run it down
  > to 1?
  > I like to run the amplifier at a maximum of 400 watts CW so as not to push
  > things.
  > I can get to that power level easy either way on the load control setting
  > and still be within the 200 ma grid current maximum recommend by
  >  Ameritron.
  > The only difference I notice is that a load control setting of 1 gets me to
  > 400 watts with less exciter power.
  > Bottom line is I need a lesson on how to properly tune the amp and proper
  > settings of the plate and load controls.
  > This may be a dumb question to some but I fell better safe and proper  use.
  > Thanks,
  > Dan/N4VET
  >
  >
  >
  >
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