I agree that the Siemens Cca( late 50's,early 60's) grey plates are very special tubes. In the right circuit in a resolving system, they are truly magical. Unfortunately, they are getting rarer and more expensive as time goes on.
Siemens CCa vs. Amperex 6922 D getter
I have a Audio Note P3 Silver with a Dodd battery pre amp. The Dodd calls for a 6922.
The Amperex WL GP PQ D getter in comparison to the CCa in my set up sounds dazed and confused. It is like a dirty window that needs cleaning when I insert the CCa.
I had the Amperex three weeks before the CCa came on the scene. When I first put the CCa in the music seemed to jump out of the speakers with such clairity that I was shocked that the Amperex somehow lost all that info.
So much for MR. Joe's report on the 6922. In my system they rock. I must say they work better with the TS 6SN7 RP than the Sylvania W metal. YMMV.
Anyone else have this experence?
The Amperex WL GP PQ D getter in comparison to the CCa in my set up sounds dazed and confused. It is like a dirty window that needs cleaning when I insert the CCa.
I had the Amperex three weeks before the CCa came on the scene. When I first put the CCa in the music seemed to jump out of the speakers with such clairity that I was shocked that the Amperex somehow lost all that info.
So much for MR. Joe's report on the 6922. In my system they rock. I must say they work better with the TS 6SN7 RP than the Sylvania W metal. YMMV.
Anyone else have this experence?