I am planning to put up an inverted-L along side my tower per the
drawing at

http://www.bloomington.in.us/~wh2t/invertedl.html

I would appreciate some suggestions for 12 and 30 inches stand offs
to support the 12g insulated wire I plan to use. Also the wire needs to
be secured at the top before it bends over. Any suggestions to keep it
from slipping at that point will be appreciated.

I plan to ball part the length at 130 feet and see what happens.

Dick, AA5VU
call at ARRL.net