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[AMPS] 1: 150W Transformer

To: <amps@contesting.com>
Subject: [AMPS] 1: 150W Transformer
From: g8gsq@qsl.net (g8gsq@qsl.net)
Date: 1 Feb 2002 08:35:30 -0000

Sorry if my replies are late for a while, spamcop has the UK offline again.
>-----Original Message-----
>From: Radio WC6W <wc6w@juno.com>
>To: 2@mail.vcnet.com <2@mail.vcnet.com>; amps@contesting.com
><amps@contesting.com>
To: <amps@contesting.com>
>Date: 31 January 2002 19:17
>Subject: Re: [AMPS] 1:3 150W wideband RF transformer
>>On Thu, 31 Jan 2002 09:44:24 -0800 rich <2@mail.vcnet.com> writes:
>>
>>> >Hi Rich,
>>> >   Did you ever try a (ferrite loaded) coaxial line transformer for
>>that spot?
>>> >
>>> No
>>>
>>> >   Three sections of coax (150 ohm or as close to it as you can  find)
>>> >with the input ends connected in parallel and the outputs connected
>>in
>>> >series.
>>> >
>>> This sounds interesting, Marv.  Is a ferrite tube used?
>>
>>   If you happen to find one of the correct dimensions... otherwise, just
>>string a handful of beads on the coax.
>
>The key is to get enough inductance in the screen of the coaxes so that the
>output end is floating - this makes it easier stepping down rather than up.
>At VHF, length alone is often enough.
>
>Steve
>
>
>
  


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