Those are probably Sovtek 6DJ8/6922.
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I feel a little foolish as I was on this forum and decided to ask here, then decided to do a little checking out for myself and discovered Carver was using the 6DJ8 tube. Regarding these tubes, I have no use for them and would send then to a fellow AGer for the cost of shipping. Again, I might be foolish as don’t know of these tubes are even worth that. Anyway, according to the CD player manual they are only used at less than 25% of capacity. The player had seen most of it’s use between 1993-1997, with little use since (none in last 6 years) so tubes do have life in them.