Original poster: "KN4AB by way of Terry Fritz <twftesla@uswest.net>" <kn4ab@home.com> I am an neophyte looking to build a vacuum tube coil using either a 6146 ( which I have several of) or an 811A. I have a schematic diagram downloaded from the net, but need a little more help on the physical construction. Can anyone direct me to a good source. Thanks, George' KN4AB