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

To: Mr Mike <>, "" <>
Subject: Re: [Amps] 3-500z amp homebrew question
From: Glen Zook <>
Reply-to: Glen Zook <>
Date: Sun, 12 Feb 2012 08:17:24 -0800 (PST)
List-post: <">>
The r.f. choke to ground is to prevent the B+ from flowing on the antenna if 
the plate coupling capacitor shorts.

In normal operation, theoretically no current will flow.  When the coupling 
capacitor shorts, a LOT of current will flow.
Glen, K9STH


 From: Mr Mike <>
To: "" <> 
Sent: Sunday, February 12, 2012 9:39 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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