Stiltskin,
The tubestore.com sells the 6n23 tubes. (http://www.thetubestore.com/rus696h.html)
I have not tried it yet since I have lots of 6922's. The M8080 is hard to find but do shows up at ebay once in a while usually from a European seller. I read that locally Conrad Johnson have stocks of this tube since they use it on their new preamps. Maybe you can get a pair from them.
I am waiting for the Sylvania Gold that I won in the auction the other day (GB6135). From my notes dated June 2004, I jotted down that I "need to stock this tubes because it is superb in the Supratek,fully balance sound...etc...etc." I will confirm that when I receive the tubes and will let others be aware who uses 6C4's on the phono preamp.
regards
The tubestore.com sells the 6n23 tubes. (http://www.thetubestore.com/rus696h.html)
I have not tried it yet since I have lots of 6922's. The M8080 is hard to find but do shows up at ebay once in a while usually from a European seller. I read that locally Conrad Johnson have stocks of this tube since they use it on their new preamps. Maybe you can get a pair from them.
I am waiting for the Sylvania Gold that I won in the auction the other day (GB6135). From my notes dated June 2004, I jotted down that I "need to stock this tubes because it is superb in the Supratek,fully balance sound...etc...etc." I will confirm that when I receive the tubes and will let others be aware who uses 6C4's on the phono preamp.
regards