[doctormap]

Thanks so much for your kind and gentle replies, I do appreciate it.  As I mentioned before, my knowledge of electronics is rudimentary.  But I do understand the basics of your replies.  So, as long as the ground wires for the grid can reach the ground pin on top of the metal tube, I should be okay.  The one tube I still have to purchase has a shorter ground wire, so I will plan to purchase a glass (G) tube for that one.  I agree, I like the glow from the tubes when the set is on, and I will plan to get glass tubes in the future if needed.