well, after studying the board i bought 3/8" cable, rated at 2880'lbs working load, for the guy wires on the upper most part of the tower.,
i''ll use the 1/4" i bought for the lower guy wires.
the tower is 72' long.
i know some of you suggested i use 5/16"., but when i went to buy the cable, they didnt have enough of that size.
well, i don't think i will have a breakage issue. thats big stuff.
i also went to the local welding supply and ordered a spool 250' of #6 welding cable. they didn't stock anything smaller than #4, so i had to get a hole spool of #6. $1.00 a foot [not to bad]. they wanted $2.00 a foot for #4.
any way i would have a hard time using #4 cause i plan on using the twist loc plug at the base of the tower. three #4's are quite large for the twist loc plug.