[TenTec] Very wierd antenna switch
Robb Urie
rurie at bajabb.com
Thu Nov 23 12:19:41 EST 2023
My 238B showed the same issue. Turned out that the shaft coupler was loose
causing the gross mis-alignment to the actual switch. Was expecting to have
to remove
the entire switch assembly, but turned out to be an easy fix.
Now if I could determine why in the bypass position it exhibits a higher
VSWR on 10 meters, project for another time.
Good luck.
Robb NØRU
-----Original Message-----
From: tentec-request at contesting.com
Sent: Thursday, November 23, 2023 10:00 AM
To: tentec at contesting.com
Subject: TenTec Digest, Vol 250, Issue 15
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Today's Topics:
1. Need TenTec 238 Ant Tuner Parts (Ken, W8EK)
2. Re: Need TenTec 238C Ant Tuner - very wierd antenna switch
behavior (W3HKK at roadrunner.com)
3. Re: Need TenTec 238C Ant Tuner - very wierd antenna switch
behavior (dukeshifi)
----------------------------------------------------------------------
Message: 1
Date: Wed, 22 Nov 2023 12:53:39 -0500
From: "Ken, W8EK" <kenw8ek at gmail.com>
To: TenTec List at contesting <tentec at contesting.com>
Subject: [TenTec] Need TenTec 238 Ant Tuner Parts
Message-ID: <b778f29d-df34-4f23-8baf-513c73605b5a at gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
I am in need for some parts for the TenTec 238
(plain 238, and NOT 238 B) antenna tuner.
Hopefully some of you might be able to help.
Here is what I need:
Top cover (U shaped, covering top and both sides)
Plexiglass dial cover, goes along the top front,
with the dial markings on it.
Plastic end plates for the front corners
Knobs
Toroid balun
Or, does anyone have a parts unit that might have
these parts on it? All of my internal parts appear
to be fine (except balun). Maybe your internal
parts are dead.
Please let me know what you might have available.
Thanks.
73,
Ken, W8EK
Ken Simpson
E-mail to W8EK at FLHam.net or W8EK at arrl.net
Voice Phone (352) 732-8400
.
------------------------------
Message: 2
Date: Wed, 22 Nov 2023 20:35:55 +0000
From: W3HKK at roadrunner.com
To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
Subject: Re: [TenTec] Need TenTec 238C Ant Tuner - very wierd antenna
switch behavior
Message-ID: <921febafa1248cf59a4a96bff88e8c974a9fb430 at webmail>
Content-Type: text/plain; charset=UTF-8
My 238C antenna switch has seemingly gone bonkers.
I connect one coax(antenna) to any of the four antenna connectors on
the rear of the unit
and when I switch from antenna 1 to 2 to 3 to 4, I get the same output
to the same single antenna when switched to any of the four positions.
Getting to the switch is a bear so I havent tried to see why the
switch is behaving as if all four positions are connected together.
Anyone had this problem before?
-----------------------------------------From: "Ken, W8EK"
To: "TenTec List at contesting"
Cc:
Sent: Wednesday November 22 2023 12:53:54PM
Subject: [TenTec] Need TenTec 238 Ant Tuner Parts
I am in need for some parts for the TenTec 238
(plain 238, and NOT 238 B) antenna tuner.
Hopefully some of you might be able to help.
Here is what I need:
Top cover (U shaped, covering top and both sides)
Plexiglass dial cover, goes along the top front,
with the dial markings on it.
Plastic end plates for the front corners
Knobs
Toroid balun
Or, does anyone have a parts unit that might have
these parts on it? All of my internal parts appear
to be fine (except balun). Maybe your internal
parts are dead.
Please let me know what you might have available.
Thanks.
73,
Ken, W8EK
Ken Simpson
E-mail to W8EK at FLHam.net or W8EK at arrl.net
Voice Phone (352) 732-8400
.
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------------------------------
Message: 3
Date: Wed, 22 Nov 2023 19:05:33 -0600
From: dukeshifi <dukeshifi at comcast.net>
To: W3HKK at roadrunner.com, Discussion of Ten-Tec Equipment
<tentec at contesting.com>
Subject: Re: [TenTec] Need TenTec 238C Ant Tuner - very wierd antenna
switch behavior
Message-ID: <A90C8BFB-C6A0-4652-9D79-5AEFFA58414E at comcast.net>
Content-Type: text/plain; charset=utf-8
Are you saying that, no matter what ;position the switch is in, that you can
connect a single antenna to any one of ten four outposts and get signal
through, or are you saying that, regardless of switch position, your signal
only goes to one of the outputs?
It?s an important difference.
If the latter is the case, look at the coupler between the front panel knob
and the switch itself to ensure that the switch?s own main shaft turns when
the panel knob is turned.
Gary
W0DVN
> On Nov 22, 2023, at 2:35?PM, W3HKK at roadrunner.com wrote:
>
> My 238C antenna switch has seemingly gone bonkers.
>
> I connect one coax(antenna) to any of the four antenna connectors on
> the rear of the unit
> and when I switch from antenna 1 to 2 to 3 to 4, I get the same output
> to the same single antenna when switched to any of the four positions.
>
> Getting to the switch is a bear so I havent tried to see why the
> switch is behaving as if all four positions are connected together.
>
> Anyone had this problem before?
>
> -----------------------------------------From: "Ken, W8EK"
> To: "TenTec List at contesting"
> Cc:
> Sent: Wednesday November 22 2023 12:53:54PM
> Subject: [TenTec] Need TenTec 238 Ant Tuner Parts
>
> I am in need for some parts for the TenTec 238
> (plain 238, and NOT 238 B) antenna tuner.
> Hopefully some of you might be able to help.
>
> Here is what I need:
> Top cover (U shaped, covering top and both sides)
> Plexiglass dial cover, goes along the top front,
> with the dial markings on it.
> Plastic end plates for the front corners
> Knobs
> Toroid balun
>
> Or, does anyone have a parts unit that might have
> these parts on it? All of my internal parts appear
> to be fine (except balun). Maybe your internal
> parts are dead.
>
> Please let me know what you might have available.
>
> Thanks.
>
> 73,
>
> Ken, W8EK
>
> Ken Simpson
> E-mail to W8EK at FLHam.net or W8EK at arrl.net
> Voice Phone (352) 732-8400
>
> .
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
> />
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
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