[AMPS] a sticky issue.

[measures]

>
>> > 3.) What difference do you expect to see?
>> 
>> I have never played with an AL-1500, but the amps I have a lot
>> of experience with (old Alphas et al, using B&W 800 chokes
>> on 160m. ( which are less than half of the Ameritron choke in value)
>> 
>> I find that  chokes of less value than about 150uh affect the tank circuit
>> in that the book values for the Pi or Pi-L don't work out because the
>> choke fouls up the L/C ratios in the tank with its interaction on 160m.
>> 
>> I see very little difference in the output, but I am not worried about
>> that. My concern is 160m RF getting back into the power supply and even
>> the A.C. mains.  As you know, 160m is a "whole 'nuther ball game."
>
>1.) It has to get past the electrolytics.
>
>2.) It has to get past the capacitors across the diodes.
>
>3.) It has to get through the transformer.
>
>4.) It has to get past the line bypasses.
>
>Seems like a big non-issue to me, since the radiation from an 
>antenna even a large distance away into the power lines will be 
>hundreds of times stronger than RF leakage through that "direct 
>path".
>
The problem is not radiation.  The problem is RF current passing through 
the HV-RFC -  possibly shortening the life of the electrolytics.  
>
end

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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