2. amps-preamps
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12BZ7 ///12AX7

Could not finda  topic for tubes, so am using amps section.
After making the amazing discovery of the E80CC as sub for AU~~E80CC blows away every/all AU's, including the *Holy Grails/Siemens,Tele's*.
http://www.r-type.org/exhib/aaa0426.htm
at least in my Defy7, the swap was more than just significant, the Defy came to life from the grave.
I found the Siemens to bea  miniscle superior to Philips = both are equal IMHO, and the valvo Red label E80's going for $$$$$$$$$$ is a scam. Don't buy into it. 
Right now that tube  is going for $50/each. When word gets out  ~~Super Tube~~~the price will rocket, as that tube is not being produced any longer. 
I've loaded up on the Philips label.

so i figured,, maybe there is a  
~~Super Tube~~ for the AX..
After days/weeks of research,,i found this
12BZ7
https://www.radiomuseum.org/tubes/tube_12bz7.html


*Big Boys*
So  ordered a  bunch off ebay, and will arrive next week
Will post a  review.
can not find much on the INET about the 12BZ7,, anyone have experience with this tube?
mozartfan

Showing 1 response by oldhvymec

oldhvymec
5,101 posts
 
Wow what a roller coaster. Fun to look at, but sure a lot of it..

Your on quit a journey indeed. "Burn in Theory" Take a little more time and let the things break in a bit, settle down. 

I'm reading some pretty crazy stuff here. Cables were swapped?

How may valves sounded bad during that time? How long were they that way?

I have quite a few different "TANKS" as you call them here..
Be careful. A valve can really cause problems.  You have a way to check your valves and make sure they are balanced? No issues to begin with. That's probably most of the issues with "sound bad" valves.  Like I said, a lot of words, but difficult to weed through it..

No lack of enthusiasm though..

Regards
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