Ethifi - Sounds to me like you need some new 6F6G's. I'm not sure what the "Brima" brand is... Did you mean Brimar?
Tubeworld has a good selection of NOS 6F6G's. They may cost a bit more than you'd pay on Ebay but you'll be taken care of should you have problems with a particular tube.
Tubeworlds tube list is at:
http://www.tubeworld.com/tubes.html
Also.. what is this 3 way gain switch you're talking about?
I've only seen low/high gain switches on Chardonnay's. Is this a new "feature"?
Tubeworld has a good selection of NOS 6F6G's. They may cost a bit more than you'd pay on Ebay but you'll be taken care of should you have problems with a particular tube.
Tubeworlds tube list is at:
http://www.tubeworld.com/tubes.html
Also.. what is this 3 way gain switch you're talking about?
I've only seen low/high gain switches on Chardonnay's. Is this a new "feature"?