Psvane 12AU7-T
This product has been discontinued permanently:

This product has been discontinued permanently:
This product has been discontinued permanently:
This product has been discontinued permanently:
This product has been discontinued permanently:
This product has been discontinued permanently:
Feedback from customer Gregg O. by email:
“The 6CA7Z’s arrived safe and sound.
I have about 5 hours on them and so far I think something special is going
on.
I have on hand a quad of NOS EL34’s from a very reputable source that have
150 hours on them..and so far the 6CA7 Treasures seem to have more fullness
and body to the sound without sacrificing detail.
I can safely say that if one wants to prevent stomach ulcers and headaches(
from banging your head against the wall) trying various NOS EL34’s…Just
buy the 80% emission Treasures and be done with it.
Posted by forum member:
I would recommend the Shuguang Treasure 6CA7-Zs, as tested and screened by Grant Fidelity, as a substitute for the EL34s. The additional cost is well worth the better Grade A. I noticed that the heat from the Treasure 6CA7-Zs is substantially and significantly less than the heat that emanated from either the Siemens or the JJ KT77s or the EH EL34s. That thermal difference could well mean a longer life-span for the Treasures.
original post here: http://www.audiokarma.org/forums/showthread.php?p=4503443
This product has been discontinued permanently:
by email from customer Kevin K.
‘Hi Rachel,
Thank You! The tubes arrived today and I can best describe them as “emotional.” I have had the CD 327a powered on for two days now and listened to Rickee Lee Jones and The Durutti Column through the Treasure Series this afternoon and they sound very good already. Perhaps the selection of tunes has to do with the “emotional” tag; I dunno…’