[TowerTalk] Tower Insulators

[James Bloomfield]

    I plan to install a 90 ft. vertical Rohn 25 that is fed with two 'L'
networks for 160 and 80 meters. 

 

    This is described in Low-Band DXing by John Devoldere ON4UN.

 

    I think I can do everything necessary except I have not been able to
find insulators for the base of the tower.  There was one commercial source
but they wanted $300.00. 

 

    This is a 'budget' project.  The towers were acquired by taking down
"TV" towers that were no longer in use.  The Coax is commercial hardline
purchased for $30.00  (260 ft!)

 

    The only 'plan' that I have is to build 6 metal disc welded to rods that
fit inside the tower legs.  They would be insulated with Lexan and bolted
together in such a way that the bolts would also be insulated.  I have some
1/2 inch lexan - from a flee market.  

 

    I am aware that Rohn made insulators for the tower legs but they are no
longer available.

 

    Ideas and opinions are needed and welcome. 

 

    KV4FE

    Jim Bloomfield 

    On the Suwannee River 

    Fl.