pre amp tubes

Are 12AX7 and 12AU7 tubes interchangeable in preamps and if so what are the differences. Any suggestions for not overly expensive tubes? I have used RCA nos and Tungram before but can I do better?

mazian12-29-2018 12:41am

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Post removed Dec 29, 2018
lukaske Details Discussions Posts This discussion Message User 307 posts 12-30-2018 at 07:05am Copy Comment URL Report Comment Edit Delete I have the Audio note M5, preamp and i changed tho original tubes (sounded very woolly) in Telefunken . What a difference !! I suggest: Telefunken,Siemens,Phillips,RCA
moofoo Details Discussions Posts This discussion Message User 291 posts 12-30-2018 at 12:55pm Copy Comment URL Report Comment Edit Delete Look at Upscale Audio website. Lots of great info, videos, and actual user reviews of pre amp and power tubes. Bought many from them and very satisfied.
facten Details Discussions Posts This discussion Message User 2,878 posts 12-30-2018 at 01:30pm Copy Comment URL Report Comment Edit Delete information on Brent Jesse's website (I'm only a customer) on brands , sounds etc., as well as available individual tubes and related assessments http://www.audiotubes.com/12ax7.htm

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