Home Tubes Asylum

Questions about tubes and gear that glows. FAQ

RE: 12AU7 Reviled

I understand SOME of this, but not what it means to the details of the circuit as spellec out by the VTA folks.
3 of 'em on the driver board....the L and R are run as something to do with 'long tail'...whatever the heck THAT is...while I think the 'center' tube is used to split the L/R signal........

After that? BZZZZZZZZ

Some guy online said he used a GE 6829 for the CENTER tube with the others apparently left alone.
this is a 20$ tube! Not much as such things go...

Does this help? You might visit ithe 'tubes4hifi' site and look at the driver board configuration. It also includes a SINGLE bias adjustment for EACH output tube. And a simple procudure to do so.....

I still don't see ANY company using an 'inferior' tube....or at least a tube NOT used to good advantage and than SELL the product. Doesn't make sense, since I see 4 or 5 'interchanges' for that 12AU7 start.....Who knows? Every time I look, somebody has done something ELSE with another tube....including rewiring socket for yet ANOTHER tube.
Too much is never enough


This post is made possible by the generous support of people like you and our sponsors:
  Kimber Kable  


Follow Ups Full Thread
Follow Ups
  • RE: 12AU7 Reviled - pictureguy 22:56:12 07/01/21 (1)

FAQ

Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.