http://www.videokarma.org/showthread.php?t=270955
Here is a link to the guy here who makes new Couplates for your TV . You are very wise to hold back on doing the work yourself till you gain soldering skills , for new vacuum tube hobbyists restoring AA5 radios is as easy as swatting flies , jumping right into restoring TVs with no prior practice is more like giving a Hornet's nest that big ol kick and then trying to outrun the angry little buggers