Diezel selection B-Side Rubys???

[phil b]

Ok, I got a full set of RFT's in my Einstein and for the past month or so the amp went from killer to a giant mess of fuzz. No upper clarity.. just very fuzzy with no articulation. I already had one RFT go bad so I am just going to retube with what Peter recommends. I was reading the PDF about stock Diezel tubes and am a little confused on the Diezel Selection B-Side. The B-side thing is whats throwing me... does it mean its not matched and one side is hotter or??? I'm sure i'm overthinking it but if i'm going to retube with brand new tubes I only wanna buy once! Thanks !
If anyone has a trusted place in the US for these that would help too.

 

[Peter Diezel]

The 12AX7 has two triodes (amps) inside
called A and B. The input stage and the
sensitive stage of the lead channel is
located on the B side. This side should
be very low micro phonic.
Sorry for my bad English.

 

[phil b]

Peter,
Thats what I thought you were talking about but wanted to be sure. No apologies needed for your English and thanks for your swift response!!
In any language you are a gentleman!!

 

[subzero]

I know Pappa likes Ruby's.I have a 100wtt Einy,after trying shugang ,JJ,Boogie,Winged C.I went with all Tung-Sol 12ax7.Tubes are a very personal thing,but to me the new Tung_sol are more musical.Good luck.

 

[slyvren]

I know Pappa likes Ruby's.I have a 100wtt Einy,after trying shugang ,JJ,Boogie,Winged C.I went with all Tung-Sol 12ax7.Tubes are a very personal thing,but to me the new Tung_sol are more musical.Good luck.

Could it be that you live in Alaska and those tubes sound warmer?

I couldn't resist.

 

[phil b]

I know Pappa likes Ruby's.I have a 100wtt Einy,after trying shugang ,JJ,Boogie,Winged C.I went with all Tung-Sol 12ax7.Tubes are a very personal thing,but to me the new Tung_sol are more musical.Good luck.

Thanks. I have tried just about everything that New Sensor Corp. has put out and I dont like their high end. That seems to be the real culprit with alot of production tubes for me. When the Einy has a great set of tubes there is NOTHING that can touch it IMO, but when the tubes start to fade its like watching diamonds turn to dust.. . Hopefully the Rubys will work but I have a feeling it wont be as easy as that.