Bird or equivalents can be bought very reasonably even the 500W. Save the
trouble and buy one Not much use after 1296Mhz though

"zindazenda" wrote in message
...
well looking at a Bird 500w continious load, and it appears to me to be a
horizontal ali tube..with lots of cooling fins prssed on..is this tube oil
filled? if so pressure release valve???

asking as i want to make a load that out preforms my heathkit
cantenna..(in
load capability) and am wondering if i can make a copy...

simon g0zen