You can also buy a choke from Ameritron that has about that inductance
on one form.
Carl
KM1H
----- Original Message -----
From: "Charlie Ocker" <N9CO@aol.com>
To: "Amps Reflector" <amps@contesting.com>
Sent: Tuesday, February 10, 2009 6:37 AM
Subject: [Amps] Plate choke question
> Greetings,
>
> I'm building my first homebrew amp. Making slow but steady progress.
> It is a
> pair of 3-500z in grounded grid.
>
> I have acquired an old National R-175A plate choke. It is in good
> shape, and I
> have measured it's inductance at around 135 uH.
>
> I also have the main choke from an SB-220.
>
> Question: Can I use both of these in series for my plate choke? The
> amp will
> not have, nor will it be used on, the "WARC" bands. Standard 160 to
> 10.
>
> Just looking for ideas.
>
> Thanks es 73,
> Charlie N9CO
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>
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