@ Melkior,, your 6h30p-Dr tubes might be 1986 tubes, Here in the U.S. The 6h30p-Dr 1980 tubes are $275.00 a piece!, Thats what I am going to buy!, Said to me The 1980 tubes were better in every way!, LOL!, For that kind of money they best work miracles, Right?,, I have a question, Does new tubes have to break-in?, and if so, was it as long as the player had to?, I hated going thru all this break-in period!, cheers!