[Repeater-Builder] Re: Z Matcher schem..jpg

[Laryn Lohman]

> 
> I remember seeing that thread, but no one ever posted a concise 
> explanation of how to do that.
> 
> Is "best efficiency of the amplifier" -- when you get the maximum RF 
> power out for the least current draw?
> 

Yes, that's it.  I simply keep one eye on the ammeter and the other on
the wattmeter.  Adjusting the two variable caps and
squeezing/stretching the coil in numerous combinations will soon show
that you can reduce current while keeping the same output.  In my
case, the amps dropped from 15-16 to 12-12.5.  A nice improvement,
with a corresponding decrease in heat and increase in amplifier life.  

I think you have figured out why they added it later in production,
Nate.  I have no further information than that.  

As far as GE's instructions, I'm not sure what they accomplish.  Sure,
the voltage at the test point decreases, but so what?  Current draw is
still high, so no advantage there.  Maybe someone on this list could
tell us......?

Laryn K8TVZ








 
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