Greetings all,
Mark (K5YAC) here at Tennadyne.
All insulators are gray PVC that vary in size and thickness based on the model.
The Boom-to-Mast insulator for the original T-series logs is 5" x 9" x
1"thick. PVC insulates the boom from the mast (and from each other) and has
proven to be very durable.
What size ae you looking for, Dave? I may have a blank that you can drill.
Yes, the Tennadyne LPDA is a hot boom design which is why the boom insulators
are necessary. As for routing the feedline, no need to get fancy, if the feed
connections are made properly with a wound choke and the shield connected to
the bottom boom, the feedline can be routed right alongside the lower boom and
over to the mast.
73,
Mark - K5YAC
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of
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Sent: Friday, November 1, 2024 11:00 AM
To: towertalk@contesting.com
Subject: TowerTalk Digest, Vol 263, Issue 1
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Contents of TowerTalk digest..."
Today's Topics:
1. Fw: Tennadyne Plastic pieces (dave arruzza)
2. Tennadyne Plastic pieces (john@kk9a.com)
3. Re: Tennadyne Plastic pieces (Billy Cox)
4. Re: Tennadyne Plastic pieces (Ron WV4P)
5. Re: Tennadyne Plastic pieces (john@kk9a.com)
----------------------------------------------------------------------
Message: 1
Date: Fri, 1 Nov 2024 00:50:10 +0000 (UTC)
From: dave arruzza <w1ctn@yahoo.com>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: [TowerTalk] Fw: Tennadyne Plastic pieces
Message-ID: <1634905565.4817952.1730422210054@mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8
Fellow TT'ers...
I know Tennadyne is still in business.?
I want to change the present boom to mast bracket to a larger one and that's
why I am inquiring about the plastic type.?
73
Dave
W1CTN / NC4DA203-906-6209
"You meet saints everywhere. They can be anywhere. They are people behaving
decently in an indecent society."
Kurt Vonnegut, Jr
----- Forwarded Message ----- From: dave arruzza <w1ctn@yahoo.com>To:
towertalk@contesting.com <towertalk@contesting.com>Sent: Thursday, October 31,
2024 at 08:26:43 AM EDTSubject: Tennadyne Plastic pieces Fellow TT'ers Does
anyone know what type of plastic Tennadyne uses for the mast brackets and boom
spacers of their log periodics.
73
Dave
W1CTN / NC4DA203-906-6209
"You meet saints everywhere. They can be anywhere. They are people behaving
decently in an indecent society."
Kurt Vonnegut, Jr
------------------------------
Message: 2
Date: Thu, 31 Oct 2024 23:20:23 -0400
From: <john@kk9a.com>
To: <towertalk@contesting.com>
Subject: [TowerTalk] Tennadyne Plastic pieces
Message-ID: <000b01db2c0c$fe3557a0$faa006e0$@kk9a.com>
Content-Type: text/plain; charset="us-ascii"
The boom to mast bracket is plastic?
John KK9A?
Dave Arruzza w1ctn wrote:
Fellow TT'ers...
I know Tennadyne is still in business.
I want to change the present boom to mast bracket to a larger one and that's
why I am inquiring about the plastic type.
73
Dave
W1CTN / NC4DA203-906-6209
------------------------------
Message: 3
Date: Thu, 31 Oct 2024 22:55:56 -0500 (CDT)
From: Billy Cox <aa4nu@comcast.net>
To: john@kk9a.com, towertalk@contesting.com
Subject: Re: [TowerTalk] Tennadyne Plastic pieces
Message-ID: <1575014053.800951.1730433356894@connect.xfinity.com>
Content-Type: text/plain; charset=UTF-8
Yes, Dave is correct, the boom on the Tennadyne design is "RF hot" as to how
the LPA elements are fed ...
Suspect something like Garolite or similar that W3LPL, K3LR, N4TZ/9, W9RE, and
others use might be a suitable material?
https://www.mcmaster.com/products/garolite/
Hope this helps!
73 Billy, AA4NU
>> On 11/01/2024 3:20 AM GMT john@kk9a.com wrote:
>>
>> The boom to mast bracket is plastic?
>>
>> John KK9A?
>>
>>
>> Dave Arruzza w1ctn wrote:
>>
> Fellow TT'ers...
> I know Tennadyne is still in business.
> I want to change the present boom to mast bracket to a larger one and
> that's > why I am inquiring about the plastic type.
> 73
> Dave
> W1CTN / NC4DA203-906-6209
> http://lists.contesting.com/mailman/listinfo/towertalk
------------------------------
Message: 4
Date: Thu, 31 Oct 2024 23:03:50 -0500
From: Ron WV4P <wv4ptn@gmail.com>
To: Billy Cox <aa4nu@comcast.net>
Cc: john@kk9a.com, towertalk@contesting.com
Subject: Re: [TowerTalk] Tennadyne Plastic pieces
Message-ID:
<CAPQMqndkDp3pnaYsZHZE22x6iP_rYM2bpqh8RNjQxHjzP3+qbw@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Garolite is a Blast to Cut and or Machine !
Ron, WV4P
On Thu, Oct 31, 2024 at 11:00?PM Billy Cox via TowerTalk <
towertalk@contesting.com> wrote:
> Yes, Dave is correct, the boom on the Tennadyne design is "RF hot" as
> to how the LPA elements are fed ...
>
> Suspect something like Garolite or similar that W3LPL, K3LR, N4TZ/9,
> W9RE, and others use might be a suitable material?
>
> https://www.mcmaster.com/products/garolite/
>
> Hope this helps!
>
> 73 Billy, AA4NU
>
> >> On 11/01/2024 3:20 AM GMT john@kk9a.com wrote:
> >>
> >> The boom to mast bracket is plastic?
> >>
> >> John KK9A?
> >>
> >>
> >> Dave Arruzza w1ctn wrote:
> >>
> > Fellow TT'ers...
> > I know Tennadyne is still in business.
> > I want to change the present boom to mast bracket to a larger one
> > and that's > why I am inquiring about the plastic type.
> > 73
> > Dave
> > W1CTN / NC4DA203-906-6209
>
> > http://lists.contesting.com/mailman/listinfo/towertalk
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
------------------------------
Message: 5
Date: Fri, 1 Nov 2024 00:23:21 -0400
From: <john@kk9a.com>
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Tennadyne Plastic pieces
Message-ID: <001001db2c15$c98259a0$5c870ce0$@kk9a.com>
Content-Type: text/plain; charset="utf-8"
I used a Tennadyne in St Croix once, I just did not recall a plastic mast
bracket. I believe it had a square boom so a polypropylene Stauff clamp could
not be used to bolt the boom to an aluminum plate however maybe something
similar can be made for the square shape.
Garolite is pretty tough and expensive. I have used it myself and it worked
well.
With a log periodic hot boom you have to be careful how you run the coax across
the boom but that's a different subject.
John KK9A
-----Original Message-----
From: Billy Cox <aa4nu@comcast.net>
Sent: Thursday, October 31, 2024 11:56 PM
To: john@kk9a.com; towertalk@contesting.com
Subject: Re: [TowerTalk] Tennadyne Plastic pieces
Yes, Dave is correct, the boom on the Tennadyne design is "RF hot" as to how
the LPA elements are fed ...
Suspect something like Garolite or similar that W3LPL, K3LR, N4TZ/9, W9RE, and
others use might be a suitable material?
https://www.mcmaster.com/products/garolite/
Hope this helps!
73 Billy, AA4NU
>> On 11/01/2024 3:20 AM GMT john@kk9a.com wrote:
>>
>> The boom to mast bracket is plastic?
>>
>> John KK9A?
>>
>>
>> Dave Arruzza w1ctn wrote:
>>
> Fellow TT'ers...
> I know Tennadyne is still in business.
> I want to change the present boom to mast bracket to a larger one and
> that's > why I am inquiring about the plastic type.
> 73
> Dave
> W1CTN / NC4DA203-906-6209
> http://lists.contesting.com/mailman/listinfo/towertalk
------------------------------
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