Hi All: I just came across a TH-7 and a TH-3. I might be replacing my current TH-3 with the TH-7, and then will have two TH-3s on the ground. Has any one tried to convert an old TH-3 to a 12/17 meter beam? Just a passing thought as I could move my 5 elem 6 meter beam up to 77 feet from 35 feet and drop the modified beam on my 35 foot tower. Peter VE6YC