Found one at www.rfparts-dot-com. Go to their products page, and then to tube sockets. It's listed as the SK7, and specifically mentions the 813. It's $16.80 plus shipping. --Doug Brunner <dabrunner-at-earthlink-dot-net> Tesla List wrote: > Original Poster: Philip <shadow42-at-totcon-dot-com> > > Im hunting for a 813 tube socket. Anybody have one for sale? Also > looking for a plate clip for it. > Philip