[TowerTalk] Force12 rebuild

[Chuck Tifft]

Converted mine  a couple years back to Coils from N6BT Antennas. He also 
supplied the needed tubing for the conversion and I think it all came to 
less than $300.

Chuck W6RD

On 12/21/2019 7:14 PM, N4ZR wrote:
> In fact, I believe F12 in later years made the 40M single-band 
> antennas (called the Delta line) with coils in place of the linear 
> loading.  That said, I had one up at 104 feet for 15 years with the 
> original alumoweld wire, and zero issues
>
> 73, Pete N4ZR
> Check out the Reverse Beacon Network
> at <http://reversebeacon.net>, now
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>
> On 12/21/2019 5:26 PM, Richard Smith wrote:
>>   Hi Jim,
>> Sorry to sound dumb, but what is an hb coil?
>> 73, Rich, N6KT
>>      On Saturday, December 21, 2019, 02:13:15 PM PST, Jim Thomson 
>> <jim.thom at telus.net> wrote:
>>     Date: Fri, 20 Dec 2019 14:01:20 -0600
>> From: N5KM - Kris <n5kilomike at gmail.com>
>> To: "towertalk at contesting.com" <towertalk at contesting.com>
>> Subject: [TowerTalk] Force12 rebuild
>>
>>
>> <Im rebuilding my Force12 40m yagi. What would you recommend as 
>> replacement
>> <for the alumoweld linear loading wires? Some of these wires have 
>> snapped in
>> <the past due to years of vibration.
>>
>> <Note: as part of the rebuild I am adding truss supports for the 3 
>> elements
>> <in order to remove the stress on the linear loading wires.
>>
>> <Kris N5KM
>>
>> ##  replace the  LL alumoweld  fubar  with hb  coils...  like either  
>> al  or  cu.  Use  dacron  rope  for the
>> new  truss supports.
>>
>> ##  Dont  even  think  about using SS  wire..... the losses are 
>> beyond  sky  high.  It  will  break  anyway,  cuz  of  metal fatigue.
>> Stranded  CU wire  would  work,  but hb coils are simpler.
>>
>> Jim  VE7RF
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