Siemens CCa vs. Amperex PW 6922

Mr S- The tubes manufactured for the German telecommunications industry had to conform to certain performance specs. Kind of a parallel of our Mil Spec Standards(once upon a time). The CCa was a specially selected 10K hr, low-noise/well balanced triode ala the ECC801S, 802S, 803S. If Amperex made and exported the tubes for that application, they would have been a higher grade of the standard PW. I'd like to hear those myself.

Rodman,my man -:)

So even the "Unicorn-like" Amperex PW's would not be as good?

Sheeesh,"those" are supposedly an amazing and incredibly rare tube,and there is even a "better" PW type,in the CCa Phillips PW?

This journey is becomming almost like a good "mystery movie"......Ya know,where the viewer is kept guessing until the very end!

I'm stsrting to think there is no end in Tubes-ville.....Or is the "marketing machine at work?

Best to all

The Amperex 7308 PQ US White Label or ( USN-CEP) are extremely close to the 6922 PW's, a little "fuller" in all ranges. The 6922 PQ White Label is also" fuller" in all ranges but seems to be less detailed with a bigger mid range,I don't find it as evenly balanced as the other two.

No marketing machine here just different perceptions and equipment.