Topband: dipole design

[mike l dormann]

not being a fan of coax i am planning a double L (PVCC style)  dipole and
plan to use twin lead for the antenna and feed line. 

if i have it correct, the antenna will be  213 feet of twin lead fed in
the middle with more twin lead to the shack antenna tuner, with two 23
foot sections of plain wire , each one attached to a shorted twinlead
end.

from what i can determine (page 350, 1963 ARRL handbook), normal radio
shack twin lead has a velocity factor of about .8

thank you for your perusal

mike w7dra