[Collins] Re: [Johnson] Re: Advantages/disadvantages of an "L" tuner circuit?

Thu, 14 Nov 2002 19:42:38 -0500

And if you build the "T" you avoid the need to switch the input and output as
you may with an "L". Not a "showstopper", but another place for loss, arcing,
etc.

GL and 73, Joel W1ZR

Richard Peterson wrote:

> The high pass "T" network can handle about the widest impedances I've ever
> seen; but on my own unit (for my S-Line or Johsnon Desk), I configure it
> sometimes for an "L" network which will handle almost as wide a range.  I
> suppose you could argue that the "T" is something like two back to back "L"
> networks.  Regardless, sometimes the configuration can become fairly High-Q
> and that's when I encounter some arcing. Summary: The L is a good, universal
> circuit, and I would give it a try. However, I have found a little more
> capability in my "T."  If you have the components, build the "T." - Richard,
> WB5NEN
>
> From: kwylow zinjanthropus <[email protected]>
> To: [email protected], [email protected]
> Subject: [Johnson] Advantages/disadvantages of an "L" tuner circuit?
> Date: Thu, 14 Nov 2002 10:53:43 -0800 (PST)
>
> All:
>
> Just took a look at Ten-Tec's lineup. I was surprised that they show their
> tuner using an "L" configuration for matching. I was considering building a
> 1KW tuner and if TenTec chooses an L designed, I figured "why not". Can
> anyone convince me either way? Oh, so that the topic is not off subject:
> it's for my Collins and Johnson rigs
>
> 73 de Cal, N6KYR
>
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