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Re: [TenTec] TT 238C will not tune

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] TT 238C will not tune
From: "Robert Mcgraw" <rmcgraw@blomand.net>
Reply-to: rmcgraw@blomand.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 28 Jul 2013 13:18:22 -0500 (CDT)
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
If 0 is maximum inductance.....good.  If 0 is minimum inductance.....not
so good.  Some value of C is correct for determining the HiZ or LoZ
switch setting initially.

73
Bob, K4TAX


>
>
> On 7/27/2013 7:15 PM, Bob McGraw - K4TAX wrote:
>    Now if the inductance is maximum value then
>> it is very apparent where Z should be located, either on the input of L
>> or the output of L.  I believe it general practice to start with
>> maximum
>> inductance for adjustment of any L network.
>
> _____________________________________________
>
>
>       Hmmm...  so it appears the instruction manual
>       does not describe the best approach?  I understood
>       the user manual to say I should start with zero
>       on the Inductor, and the Capacitor at around 2.
>
>       In contrast, based on your description, it appears
>       I would be better off starting with the inductor in
>       the middle - away from either end - and that starting
>       there will make it more obvious what initial capacitor
>       setting to select on the BYPASS switch.  I know that
>       is not "maximum" - but it would assure that I started
>       working against a substantial inductance, rather
>       than zero.
>
> Or... have I misunderstood?
>
> ---------- Thanks - K8JHR  -----------------------
>
>
>
>
>
> --.
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>


-- 
Disclosure:
I am a Tentec Ambassador and compensated according to the Tentec
Ambassador plan. I serve as a volunteer beta test person for the Omni
VII, Eagle and Argonaut VI products.   Otherwise, I hold no business or
employment interest with Tentec.

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