Amperex 6DJ8 Tube Questions

Agreed. Holland made in my system also give me the greatest satisfaction.

Had heard over the years that the USA 6922 and 7308 were superb. Having used several pairs of each, I found that although very good they were not in the top echelon as are the Holland E88CC and E188CC tubes, either large halo or d-getter versions. This is just my opinion YMMV.

One seemingly consistent difference I find between U.S. and Dutch (Philips) Amperexes is the American made 6922 and 7308 are not as rich sounding as the Heerlen, Holland versions. On the other hand, the sound from the U.S. manufactured variety leans a bit more toward the transparent. In my system, I personally prefer the Holland made tubes for the fuller, more organic tone they impart to instruments.

I like 1950s Holland D-getter E188CC tubes very much.

I’m aware the previous posts are from 2004.

I’ve also tried quite a few of the Amperex/Philips 6DJ8, 6922 and 7308 tubes. Says photon46 above, "The A-frames all sound harsh by comparison to me, tonal balance tilted to much towards the highs. Of, course if that’s to your tastes, ymmv. "

In my experience, orange (NOT orange globe) Amperex 6DJ8 A-frames with dimpled solid disc getters in my CJ Classic 60 amp exhibit no harshness. There is a full, very nicely balanced, musical sound. I won’t bother to go into details about what else is in my system.

I’ve also read Joe’s Tubelore descriptions, often getting very different impressions from the same designated tubes in my system compared with what he experienced while listening to his own system(s).

Per what has been said countless times before, to find out what suits your enjoyment, listen to all the tubes you’re willing and able to in your own system.

I've used all of the above (except green label) in my Music Reference RM5III preamp and found that, in my system, they break into two groups tonally. Of the O-getters, I love the Orange Globes the most. I agree with Tubelore Joe's evaluation. Very well balanced, great bass, airy, extended treble without etch or harshness. The A-frames all sound harsh by comparison to me, tonal balance tilted to much towards the highs. Of, course if that's to your tastes, ymmv.

All the orange label stuff is later than the white label/Bugle boy ones (which I think actually sound better - the earlier ones). White label is from about 1958(?) - 1962ish. Orange ran until 1970 or so. Green label was after that. World logo = doesn't mean much. Getters varied from A-frame (aka dimpled disc getter), to Halos large and small. No D-getters in this era, AFAIK. The getter doesnt' affect the sound of the tube, it's just a way of dating it to some degree. (though not really needed in this case since they are date-coded anyway).

-Ed