[TowerTalk] Tennadyne Plastic pieces

Fri Nov 1 13:28:10 EDT 2024

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-----
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Sent: Friday, November 1, 2024 11:00 AM
To: towertalk at contesting.com
Subject: TowerTalk Digest, Vol 263, Issue 1

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Today's Topics:

   1. Fw: Tennadyne Plastic pieces (dave arruzza)
   2. Tennadyne Plastic pieces (john at kk9a.com)
   3. Re: Tennadyne Plastic pieces (Billy Cox)
   4. Re: Tennadyne Plastic pieces (Ron WV4P)
   5. Re: Tennadyne Plastic pieces (john at kk9a.com)

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Message: 1
Date: Fri, 1 Nov 2024 00:50:10 +0000 (UTC)
From: dave arruzza <w1ctn at yahoo.com>
To: "towertalk at contesting.com" <towertalk at contesting.com>
Subject: [TowerTalk] Fw: Tennadyne Plastic pieces
Message-ID: <1634905565.4817952.1730422210054 at 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 at yahoo.com>To: towertalk at contesting.com <towertalk at 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 at kk9a.com>
To: <towertalk at 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 at comcast.net>
To: john at kk9a.com, towertalk at contesting.com
Subject: Re: [TowerTalk] Tennadyne Plastic pieces
Message-ID: <1575014053.800951.1730433356894 at 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 at 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 at gmail.com>
To: Billy Cox <aa4nu at comcast.net>
Cc: john at kk9a.com, towertalk at contesting.com
Subject: Re: [TowerTalk] Tennadyne Plastic pieces
Message-ID:
	<CAPQMqndkDp3pnaYsZHZE22x6iP_rYM2bpqh8RNjQxHjzP3+qbw at 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 at 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 at 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 at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>

------------------------------

Message: 5
Date: Fri, 1 Nov 2024 00:23:21 -0400
From: <john at kk9a.com>
To: <towertalk at 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 at comcast.net>
Sent: Thursday, October 31, 2024 11:56 PM
To: john at kk9a.com; towertalk at 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 at 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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