[Einar72]

Originally Posted by snelson903

but i have never seen a 6dl3 tube.

Here's one:

http://www.ebay.com/itm/Vintage-Tube...item1c271400bb

Or one with the correct branding for a little more:

http://www.ebay.com/itm/1-NOS-TUBES-...item415f3e315b

Good luck, that's a nice TV.