A lot of audio equipment manufacturers utilize the 6SN7 and millions of these tubes were manufactured for the military, so there is a good supply and more choices for tube rolling. My favorite 6SN7s are Slyvania for accuracy
For tubey sound I like RCA and Tungsol for smoothness
Agon Member JSAUTTER is a very knowledgeable source for tubes
Brent Jesse is a good dealer on the web. I have no comment or opinion on the 6np1
For tubey sound I like RCA and Tungsol for smoothness
Agon Member JSAUTTER is a very knowledgeable source for tubes
Brent Jesse is a good dealer on the web. I have no comment or opinion on the 6np1