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Re: [Amps] 3-500z amp homebrew question

To: Mr Mike <>, "" <>
Subject: Re: [Amps] 3-500z amp homebrew question
From: "Fuqua, Bill L" <>
Date: Sun, 12 Feb 2012 16:13:12 -0500
List-post: <">>
THis choke is to resolve several problems.
One that is often forgtten is that many antennas don't have a DC path to ground.
Due to that a static charge can begin to build up ( even if the coupling 
capacitors are perfect) and
a DC bias is developed on the output capacitor which effectively reduces the 
peak RF voltage that 
it can handle, thus causing an arc when transmitting. 
Bill wa4lav

From: [] On Behalf Of Mr 
Mike []
Sent: Sunday, February 12, 2012 10:39 AM
Subject: [Amps] 3-500z amp homebrew question

Mike, AC2Q, here.
I am in the process of De-Re-Homebrewing a 6 meter single 3-500z amp I 
required. In short I doubt it ever worked well, and while it would look good 
schematically, the construction techniques were horrid.

My QUESTION is regarding the RFC that is downstream of the output network, what 
is it's purpose? And what sort of current would it be carrying?

"Typically" in HF amps, it has a value of 2.5mH.

Any helpful input appreciated.

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