Topband: 4-Square info wanted

[Brad Anbro]

Hello all,

I am interested in putting up a 4-aquare for 160 meters
next summer and was wondering if someone could
direct me to some information on how to put together
the switching / relay box for the set-up and also ideas
on what is being used for the vertical radiators.

I have the 3rd & 4th editions of ON4UN's "Low Band
DX'ing" but am having a difficult time interpreting what
is needed for winding the toroid coils, the feed-line
lengths, etc. I am an industrial elecrtician by trade and
not an electronics engineer. 

The actual construction of the box with the relays and
connectors would be no problem; I mainly need help
with the construction of the toroids & the feed-line
lengths.

Thank you very much for any help in regards to this!

73 de Brad, N9EN