[rfeenstra]

Thanks, Mike, for that info.  There may be a few that I'll have to do that with. but this evening I got the first row of tube sockets riveted in without a lot of difficulty.  The next row is a bit more difficult as the rivets are closer and the tube shield  bases get in the way.  Need to make some custom bucking bars to set the rivets.  So far, only very minor, invisible damage.