Fw: [TenTec] Model 238 Tuner problems?

[Robert & Linda McGraw K4TAX]

----- Original Message -----
From: "Robert & Linda McGraw (K4TAX)" <RMcGraw@Blomand.Net>
To: "Duane A Calvin" <ac5aa@juno.com>; <tentec@contesting.com>
Sent: Monday, October 01, 2001 7:14 PM
Subject: Re: [TenTec] Model 238 Tuner problems?


> Yes, I've had the same problem. It is the heating of one of the ceramic
caps
> located at the back of the HI-Z - BYPASS - LO-Z switch at the lower rear
of
> the tuner.  Even though it's rated for 1KV or so, it is inadequate for
some
> phase angles of RF current.  I removed mine, replaced them with a couple
of
> transmitting mica's.  Problem solved.
>
> 73
> Bob K4TAX
>
> ----- Original Message -----
> From: "Duane A Calvin" <ac5aa@juno.com>
> To: <tentec@contesting.com>
> Sent: Monday, October 01, 2001 8:58 AM
> Subject: [TenTec] Model 238 Tuner problems?
>
>
> > Has anyone had a problem with their Model 238 tuner, especially if you
> > run a KW?  Just curious - I had something happen during the CQ/RJ RTTY
> > contest last weekend which, at first, I thought meant I'd blown another
> > doorknob on my vertical (oh no - - more $$$!).  Then I got a similar
> > indication when I switched to my G5RV.  The only common item is the
> > tuner.  SWR kept changing and I'd have to retune.  On 80m, it would
start
> > low and then skyrocket.  They are different enough indications that I
> > might have 2 problems, but I'd like to see how others have found their
> > Model 238.  I've had mine for 3-4 years with not a single problem.
> >
> >         73, Duane
> >
> >
> > Duane Calvin, AC5AA
> > Austin, Texas
> > _______________________________________________
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> >
>